Items

Items

• 

  [E1266CV1], Letter from William Alphonsus Hayes to Walter Henry Miller, November 9th, 1912

  1912-11-09
• 

  [E1635BK], Letter from William Alphonsus Hayes to Thomas Alva Edison, July 23rd, 1916

  1916-07-23
• No image

  [NA242AAB] Memorandum, William Alphonsus Hayes, 1948-1949

  1948-1949
• No image

  [NA365000A], Technical Note, William Alphonsus Hayes, Thomas Alva Edison, February 21st, 1918

  1918-02-21
• No image

  [NA365000B], Technical Note, William Alphonsus Hayes, Thomas Alva Edison, February 25th, 1918

  1918-02-25
• No image

  [NA365000C], Technical Note, William Alphonsus Hayes, Thomas Alva Edison, February 26th, 1918

  1918-02-26
• No image

  [NA365000D], Technical Note, Thomas Alva Edison, William Alphonsus Hayes, February 27th, 1918

  1918-02-27
• No image

  [NA365000E], Technical Note, William Alphonsus Hayes, Thomas Alva Edison, March 4th, 1918

  1918-03-04
• No image

  [NA365000F], Technical Note, William Alphonsus Hayes, Thomas Alva Edison, March 6th, 1918

  1918-03-06
• No image

  [NA365001], Technical Note, William Alphonsus Hayes, Thomas Alva Edison, March 7th, 1918

  1918-03-07
• No image

  [NA365002], Technical Note, William Alphonsus Hayes, March 8th, 1918

  1918-03-08
• No image

  [NA365002A], Technical Note, William Alphonsus Hayes, March 9th, 1918

  1918-03-09
• No image

  [NA365003A], Technical Note, William Alphonsus Hayes, William Deans, March 14th, 1918

  1918-03-14
• No image

  [NA365005], Technical Note, William Alphonsus Hayes, William Deans, March 15th, 1918

  1918-03-15
• No image

  [NA365007], Technical Note, William Alphonsus Hayes, William Deans, March 16th, 1918

  1918-03-16
• No image

  [NA365011], Technical Note, Thomas Alva Edison, William Deans, William Alphonsus Hayes, March 17th, 1918

  1918-03-17
• No image

  [NA365021], Technical Note, William Alphonsus Hayes, William Deans, March 28th, 1918

  1918-03-28
• No image

  [NB233015], Technical Note, William Alphonsus Hayes, William Deans, April 8th, 1918

  1918-04-08
• No image

  [NB233015A], Technical Note, William Deans, William Alphonsus Hayes, April 12th, 1918

  1918-04-12
• No image

  [NB233017], Technical Note, William Alphonsus Hayes, William Deans, April 10th, 1918

  1918-04-10
• No image

  [NB233017A], Technical Note, William Alphonsus Hayes, William Deans, April 13th, 1918

  1918-04-13
• No image

  [NB233017B], Technical Note, William Alphonsus Hayes, William Deans, April 14th, 1918

  1918-04-14
• No image

  [NB233019], Technical Note, Sherwood Troop (Sam) Moore, William Alphonsus Hayes, April 16th, 1918

  1918-04-16
• No image

  [NB233023], Technical Note, William Alphonsus Hayes, April 18th, 1918

  1918-04-18
• No image

  [NB233025], Technical Note, William Alphonsus Hayes, April 19th, 1918

  1918-04-19
• No image

  [NB233027], Technical Note, William Alphonsus Hayes, April 20th, 1918

  1918-04-20
• No image

  [NB233AAA], Technical Note, William Alphonsus Hayes, William Deans, April 1918

  1918-04-00
• No image

  [NB239] Technical Note, c. 1918

  1918-00-00
• No image

  [NB239003], Technical Note, Fehen (Edison Employee), Newman Henry Holland, William Alphonsus Hayes, March 1918

  1918-03-00
• No image

  [NB239007], Technical Note, William Alphonsus Hayes, Fehen (Edison Employee), April 1918

  1918-04-00
• No image

  [NB239013], Technical Note, William Alphonsus Hayes, Fehen (Edison Employee), May 1918

  1918-05-00
• No image

  [NB239016], Technical Note, William Alphonsus Hayes, Fehen (Edison Employee), June 1918

  1918-06-00
• No image

  [NB239070], Technical Note, William Alphonsus Hayes, William De Mille Telfair, May 1919

  1919-05-00
• No image

  [NB239081], Technical Note, William Alphonsus Hayes, June 10th, 1919

  1919-06-10
• No image

  [NB239083], Technical Note, William Alphonsus Hayes, June 11th, 1919

  1919-06-11
• No image

  [NB239085], Technical Note, William Alphonsus Hayes, June 12th, 1919

  1919-06-12
• No image

  [NB239087], Technical Note, William Alphonsus Hayes, June 13th, 1919

  1919-06-13
• No image

  [NB239089], Technical Note, William Alphonsus Hayes, June 1919

  1919-06-00
• No image

  [NB239097], Technical Note, William Alphonsus Hayes, August 11th, 1919

  1919-08-11
• No image

  [NB239099], Technical Note, William Alphonsus Hayes, August 12th, 1919

  1919-08-12
• No image

  [NB239101], Technical Note, William Alphonsus Hayes, August 13th, 1919

  1919-08-13
• No image

  [NB239103], Technical Note, William Alphonsus Hayes, September 1919

  1919-09-00
• No image

  [NB239111], Technical Note, William Alphonsus Hayes, October 1919

  1919-10-00
• No image

  [NB239141], Technical Note, William Alphonsus Hayes, January 24th, 1920

  1920-01-24
• No image

  [NB239145], Technical Note, William Alphonsus Hayes, February 11th, 1920

  1920-02-11
• No image

  [NB239147], Technical Note, William Alphonsus Hayes, February 1920

  1920-02-00
• No image

  [NB239152], Technical Note, William Alphonsus Hayes, March 1920

  1920-03-00
• No image

  [NB239156], Technical Note, William Alphonsus Hayes, April 1920

  1920-04-00
• No image

  [NB239158], Technical Note, William Alphonsus Hayes, May 1920

  1920-05-00
• No image

  [NB239159], Technical Note, William Alphonsus Hayes, June 1920

  1920-06-00
• No image

  [NB239159A], Technical Note, William Alphonsus Hayes, July 1920

  1920-07-00
• No image

  [NB264000], Technical Note, William Alphonsus Hayes, October 25th, 1918

  1918-10-25
• No image

  [NB264001] Technical Note, October 1920

  1920-10-00
• No image

  [NB264005], Technical Note, William Alphonsus Hayes, October 1920

  1920-10-00
• No image

  [NB264049], Technical Note, William Alphonsus Hayes, October 29th, 1920

  1920-10-29
• No image

  [NB264051], Technical Note, William Alphonsus Hayes, November 1920

  1920-11-00
• No image

  [NB264069], Technical Note, William Alphonsus Hayes, December 1920

  1920-12-00
• No image

  [NB264071], Technical Note, William Alphonsus Hayes, December 11th, 1920

  1920-12-11
• No image

  [NB264079], Technical Note, William Alphonsus Hayes, December 17th, 1920

  1920-12-17
• No image

  [NB264081], Technical Note, William Alphonsus Hayes, December 23rd, 1920

  1920-12-23
• No image

  [NB264082], Technical Note, William Alphonsus Hayes, December 24th, 1920

  1920-12-24
• No image

  [NB264089], Technical Note, William Alphonsus Hayes, January 1921

  1921-01-00
• No image

  [NB264097], Technical Note, William Alphonsus Hayes, February 4th, 1921

  1921-02-04
• No image

  [NB264098], Technical Note, William Alphonsus Hayes, February 1921

  1921-02-00
• No image

  [NB264101], Technical Note, William Alphonsus Hayes, February 22nd, 1921

  1921-02-22
• No image

  [NB264102], Technical Note, William Alphonsus Hayes, February 25th, 1921

  1921-02-25
• No image

  [NB264106], Technical Note, William Alphonsus Hayes, March 5th, 1921

  1921-03-05
• No image

  [NB264108], Technical Note, William Alphonsus Hayes, March 7th, 1921

  1921-03-07
• No image

  [NB264112], Technical Note, William Alphonsus Hayes, Thomas Alva Edison, March 10th, 1921

  1921-03-10
• No image

  [NB264112A], Technical Note, William Alphonsus Hayes, February 26th, 1921

  1921-02-26
• No image

  [NB264113], Technical Note, William Alphonsus Hayes, March 11th, 1921

  1921-03-11
• No image

  [NB264115], Technical Note, William Alphonsus Hayes, March 14th, 1921

  1921-03-14
• No image

  [NB264116], Technical Note, William Alphonsus Hayes, July 13th, 1921

  1921-07-13
• No image

  [NB264117], Technical Note, William Alphonsus Hayes, March 14th, 1921

  1921-03-14
• No image

  [NB264121], Technical Note, William Alphonsus Hayes, March 26th, 1921

  1921-03-26
• No image

  [NB264123], Technical Note, William Alphonsus Hayes, April 1st, 1921

  1921-04-01
• No image

  [NB264125], Technical Note, William Alphonsus Hayes, April 4th, 1921

  1921-04-04
• No image

  [NB264125A], Technical Note, William Alphonsus Hayes, April 5th, 1921

  1921-04-05
• No image

  [NB264125B], Technical Note, William Alphonsus Hayes, April 6th, 1921

  1921-04-06
• No image

  [NB264125C], Technical Note, William Alphonsus Hayes, April 7th, 1921

  1921-04-07
• No image

  [NB264127], Technical Note, William Alphonsus Hayes, April 8th, 1921

  1921-04-08
• No image

  [NB264127A], Technical Note, William Alphonsus Hayes, April 11th, 1921

  1921-04-11
• No image

  [NB264129], Technical Note, William Alphonsus Hayes, June 8th, 1921

  1921-06-08
• No image

  [NB264131], Technical Note, William Alphonsus Hayes, June 9th, 1921

  1921-06-09
• No image

  [NB264133], Technical Note, William Alphonsus Hayes, June 10th, 1921

  1921-06-10
• No image

  [NB264133A], Technical Note, William Alphonsus Hayes, June 11th, 1921

  1921-06-11
• No image

  [NB264133B], Technical Note, William Alphonsus Hayes, June 13th, 1921

  1921-06-13
• No image

  [NB264134], Technical Note, William Alphonsus Hayes, June 14th, 1921

  1921-06-14
• No image

  [NB264135], Technical Note, William Alphonsus Hayes, June 15th, 1921

  1921-06-15
• No image

  [NB264135A], Technical Note, William Alphonsus Hayes, July 13th, 1921

  1921-07-13
• No image

  [NB264136], Technical Note, William Alphonsus Hayes, July 1921

  1921-07-00
• No image

  [NB264137], Technical Note, William Alphonsus Hayes, July 20th, 1921

  1921-07-20
• No image

  [NB264141], Technical Note, William Alphonsus Hayes, September 7th, 1921

  1921-09-07
• No image

  [NB264142], Technical Note, William Alphonsus Hayes, September 1921

  1921-09-00
• No image

  [NB264142A], Technical Note, William Alphonsus Hayes, March 30th, 1922

  1922-03-30
• No image

  [NB264143], Technical Note, William Alphonsus Hayes, September 1921

  1921-09-00
• No image

  [NB264145], Technical Note, William Alphonsus Hayes, January 7th, 1921

  1921-01-07
• No image

  [NB264147], Technical Note, William Alphonsus Hayes, February 1921

  1921-02-00
• No image

  [NB264149], Technical Note, William Alphonsus Hayes, September 13th, 1921

  1921-09-13
• No image

  [NB264151] Technical Note, c. 1922

  1922-00-00