Items

• [B056aO], Letter from William Abbott Hardy to Thomas Alva Edison, June 23rd, 1921
  1921-06-23
• [B056aV], Letter from William Abbott Hardy to Thomas Alva Edison, November 27th, 1923
  1923-11-27
• [B056aX], Letter from William Abbott Hardy to Thomas Alva Edison, May 22nd, 1925
  1925-05-22
• [B056aY], Letter from William Abbott Hardy to Thomas Alva Edison, July 20th, 1926
  1926-07-20
• [E1355AW], Letter from William Abbott Hardy to Thomas Alva Edison, November 5th, 1913
  1913-11-05
• [E1355AX], Letter from William Abbott Hardy to Thomas Alva Edison, November 28th, 1913
  1913-11-28
• [E1355BB], Letter from William Abbott Hardy to Thomas Alva Edison, December 17th, 1913
  1913-12-17
• [E1518EAN], Letter from William Abbott Hardy to Thomas Alva Edison, May 6th, 1915
  1915-05-06
• [E1558AC], Letter from William Abbott Hardy to Carl Hillis Wilson, January 14th, 1915
  1915-01-14
• [E1563AD], Letter from William Abbott Hardy to Carl Hillis Wilson, January 26th, 1915
  1915-01-26
• [E1565QA], Letter from William Abbott Hardy to William Henry Meadowcroft, December 13th, 1915
  1915-12-13
• [E1565QZ], Letter from William Abbott Hardy to John Pierrepont Constable, December 22nd, 1915
  1915-12-22
• [E1662AA], Letter from William Abbott Hardy to Robert Abraham Bachman, February 1916
  1916-02-00
• [E1662AC], Letter from William Abbott Hardy to Thomas Alva Edison, February 25th, 1916
  1916-02-25
• [E1664BBR], Letter from William Abbott Hardy to John Pierrepont Constable, August 9th, 1916
  1916-08-09
• [E1770EF], Letter from William Abbott Hardy to William Henry Meadowcroft, June 21st, 1917
  1917-06-21
• [E1822AA], Letter from William Abbott Hardy to Richard Wesley Kellow, June 18th, 1918
  1918-06-18
• [HK5050AC], Letter from William Abbott Hardy to John Vincent Miller, January 27th, 1922
  1922-01-27
• [HK5066AB], Letter from William Abbott Hardy to Richard Wesley Kellow, February 13th, 1918
  1918-02-13
• [HK5158AB], Letter from William Abbott Hardy to Richard Wesley Kellow, June 14th, 1917
  1917-06-14
• [HK5182AB], Letter from William Abbott Hardy to Richard Wesley Kellow, June 10th, 1919
  1919-06-10
• [HK5182AC], Letter from William Abbott Hardy to Thomas Alva Edison, June 10th, 1919
  1919-06-10
• [HK5243AA], Letter from William Abbott Hardy to John Vincent Miller, February 1st, 1923
  1923-02-01
• [HK5243AA1], List, William Abbott Hardy, February 1st, 1923
  1923-02-01
• [HK5243AB], List, William Abbott Hardy, January 28th, 1926
  1926-01-28
• [HK5243AC], Letter from William Abbott Hardy to Frederick Condit Erwin, December 10th, 1926
  1926-12-10
• [HK5243AD], Letter from William Abbott Hardy to Frederick Condit Erwin, December 14th, 1926
  1926-12-14
• [HM55BM], Letter from William Abbott Hardy to William Horatio Mason, January 19th, 1916
  1916-01-19
• [HM56AR], Letter from William Abbott Hardy to Richard Wesley Kellow, June 21st, 1917
  1917-06-21
• [MF31CI1], Telegram from William Abbott Hardy to Thomas Alva Edison, January 28th, 1918
  1918-01-28
• [PT5032A], Letter from William Abbott Hardy to Carl Hillis Wilson, September 11th, 1916
  1916-09-11
• [PT5037D], Letter from William Abbott Hardy to Thomas Alva Edison, January 24th, 1917
  1917-01-24
• [PT5037E], Letter from William Abbott Hardy to Thomas Alva Edison, January 15th, 1918
  1918-01-15
• [PT5037F], Letter from William Abbott Hardy to Thomas Alva Edison, January 22nd, 1918
  1918-01-22
• [PT5037G], Letter from William Abbott Hardy to Thomas Alva Edison, January 1918
  1918-01-00
• [PT032AIQ11], Letter from William Abbott Hardy to William Leslie Edison, September 27th, 1913
  1913-09-27
• [PT032AIQ14], Letter from William Abbott Hardy to William Leslie Edison, December 2nd, 1913
  1913-12-02
• [PT032AJE4], Letter from William Abbott Hardy to William Leslie Edison, July 23rd, 1913
  1913-07-23
• [PT5049C], Letter from William Abbott Hardy to Thomas Alva Edison, September 22nd, 1917
  1917-09-22
• [PT5056B], Letter from William Abbott Hardy to Thomas Alva Edison, October 10th, 1917
  1917-10-10
• [PT5065I], Letter from William Abbott Hardy to Thomas Alva Edison, October 11th, 1918
  1918-10-11
• [PT5067D], Letter from William Abbott Hardy to Thomas Alva Edison, April 9th, 1918
  1918-04-09
• [PT5068B], Letter from William Abbott Hardy to Thomas Alva Edison, May 19th, 1916
  1916-05-19
• [PT5068F], Memorandum, William Abbott Hardy, June 19th, 1916
  1916-06-19
• [PT5073F], Letter from William Abbott Hardy to Thomas Alva Edison, March 11th, 1916
  1916-03-11
• [PT5073G], Letter from William Abbott Hardy to Thomas Alva Edison, March 13th, 1916
  1916-03-13
• [PT5073H], Letter from William Abbott Hardy to Thomas Alva Edison, April 20th, 1917
  1917-04-20
• [PT5081B], Letter from William Abbott Hardy to Thomas Alva Edison, June 28th, 1918
  1918-06-28
• [PT5086F], Letter from William Abbott Hardy to Thomas Alva Edison, April 10th, 1917
  1917-04-10
• [PT5086G], Letter from William Abbott Hardy to Thomas Alva Edison, June 28th, 1918
  1918-06-28
• [PT5086H], Letter from William Abbott Hardy to Thomas Alva Edison, October 11th, 1918
  1918-10-11
• [PT5090C], Letter from William Abbott Hardy to Thomas Alva Edison, November 1st, 1917
  1917-11-01
• [PT5090D], Letter from William Abbott Hardy to Thomas Alva Edison, November 23rd, 1917
  1917-11-23
• [PT5090E], Letter from William Abbott Hardy to Charles Edison, December 12th, 1917
  1917-12-12
• [PT5094A], Letter from William Abbott Hardy to Thomas Alva Edison, May 7th, 1917
  1917-05-07
• [PT5094B], Letter from William Abbott Hardy to William Henry Meadowcroft, October 16th, 1917
  1917-10-16
• [PT5094C], Letter from William Abbott Hardy to Thomas Alva Edison, December 7th, 1918
  1918-12-07
• [PT5096C], Letter from William Abbott Hardy to Thomas Alva Edison, November 5th, 1917
  1917-11-05
• [PT5096D], Letter from William Abbott Hardy to Thomas Alva Edison, November 16th, 1917
  1917-11-16
• [PT5098A], Letter from William Abbott Hardy to Thomas Alva Edison, October 15th, 1918
  1918-10-15
• [PT5099A], Letter from William Abbott Hardy to Thomas Alva Edison, Jr., January 8th, 1918
  1918-01-08
• [PT5101D], Letter from William Abbott Hardy to Thomas Alva Edison, January 5th, 1917
  1917-01-05
• [PT5102A], Letter from William Abbott Hardy to Thomas Alva Edison, August 8th, 1917
  1917-08-08
• [PT5104D], Letter from William Abbott Hardy to Lizzie Knierim, April 29th, 1921
  1921-04-29
• [PT5105A], Letter from William Abbott Hardy to Thomas Alva Edison, January 8th, 1919
  1919-01-08
• [PT5106B], Letter from William Abbott Hardy to Canada. Commissioner of Patents, March 14th, 1923
  1923-03-14
• [PT5107A], Technical Note, William Abbott Hardy, Thomas Alva Edison, April 16th, 1919
  1919-04-16
• [PT5109A1], Technical Note, William Abbott Hardy, May 1919
  1919-05-00
• [PT5109B], Memorandum, William Abbott Hardy, July 18th, 1919
  1919-07-18
• [PT5109C], Letter from William Abbott Hardy to Thomas Alva Edison, May 16th, 1924
  1924-05-16
• [PT5115B], Letter from William Abbott Hardy to Thomas Alva Edison, July 31st, 1920
  1920-07-31
• [PT5122A], Letter from William Abbott Hardy to Thomas Alva Edison, July 1st, 1920
  1920-07-01
• [PT5123A], Letter from William Abbott Hardy to Thomas Alva Edison, August 17th, 1920
  1920-08-17
• [PT5125C] Memorandum, 1921-1922
  1921-1922
• [PT5126A], Letter from William Abbott Hardy to Thomas Alva Edison, January 23rd, 1926
  1926-01-23
• [PT5126B], Letter from William Abbott Hardy to Thomas Alva Edison, December 6th, 1928
  1928-12-06
• [PT5129A], Legal Testimony, William Abbott Hardy, December 9th, 1927
  1927-12-09
• [PT5130D], Technical Note, William Abbott Hardy, 1923
  1923-00-00
• [PT5132B], Letter from William Abbott Hardy to Thomas Alva Edison, December 15th, 1922
  1922-12-15
• [PT5132C], Technical Note, William Abbott Hardy, June 1923
  1923-06-00
• [PT5132G], Memorandum, William Abbott Hardy, November 8th, 1926
  1926-11-08
• [PT5133A], Letter from William Abbott Hardy to Thomas Alva Edison, October 12th, 1926
  1926-10-12
• [PT5133C], Memorandum, William Abbott Hardy, December 19th, 1927
  1927-12-19
• [PT5133D], Letter from William Abbott Hardy to Thomas Alva Edison, April 17th, 1929
  1929-04-17
• [PT5134A], Letter from William Abbott Hardy to Thomas Alva Edison, May 11th, 1925
  1925-05-11
• [PT5135B], Letter from William Abbott Hardy to Thomas Alva Edison, December 2nd, 1924
  1924-12-02
• [PT5137B], Memorandum, William Abbott Hardy, April 22nd, 1925
  1925-04-22
• [PT5138B], Letter from William Abbott Hardy to Thomas Alva Edison, October 30th, 1925
  1925-10-30
• [PT5140B], Letter from William Abbott Hardy to Thomas Alva Edison, August 3rd, 1926
  1926-08-03
• [PT5141A], Technical Note, William Abbott Hardy, Thomas Alva Edison, November 16th, 1927
  1927-11-16
• [X079F1], Letter from William Abbott Hardy to Thomas Alva Edison, October 14th, 1927
  1927-10-14