Items

Items

• No image

  [NA335042], Technical Note, Archibald David Hoffman, Thomas Alva Edison, July 1917

  1917-07-00
• No image

  [NA335052], Technical Note, Archibald David Hoffman, August 1st, 1917

  1917-08-01
• No image

  [NA335054], Technical Note, Archibald David Hoffman, Thomas Alva Edison, August 8th, 1917

  1917-08-08
• No image

  [NA335056], Technical Note, Thomas Alva Edison, Archibald David Hoffman, July 1917

  1917-07-00
• No image

  [NA335057], Technical Note, Archibald David Hoffman, Thomas Alva Edison, August 1917

  1917-08-00
• No image

  [NA335062], Technical Note, Archibald David Hoffman, Thomas Alva Edison, July 31st, 1917

  1917-07-31
• No image

  [NA335067], Technical Note, Archibald David Hoffman, Thomas Alva Edison, August 2nd, 1917

  1917-08-02
• No image

  [NA335074], Technical Note, Thomas Alva Edison, Archibald David Hoffman, July 31st, 1917

  1917-07-31
• No image

  [NA335074A], Technical Note, Archibald David Hoffman, Thomas Alva Edison, August 1917

  1917-08-00
• No image

  [NA335078], Technical Note, Archibald David Hoffman, Thomas Alva Edison, August 2nd, 1917

  1917-08-02
• No image

  [NA335AAA], Technical Note, Thomas Alva Edison, Archibald David Hoffman, July 1917

  1917-07-00
• No image

  [NA336001] Technical Note, August 1917

  1917-08-00
• No image

  [NA336008], Technical Note, William Walter Dinwiddie, Archibald David Hoffman, August 6th, 1917

  1917-08-06
• No image

  [NA336010], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 8th, 1917

  1917-08-08
• No image

  [NA336018], Technical Note, Archibald David Hoffman, Thomas Alva Edison, William Walter Dinwiddie, August 10th, 1917

  1917-08-10
• No image

  [NA336024], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 8th, 1917

  1917-08-08
• No image

  [NA336030], Technical Note, William Walter Dinwiddie, Archibald David Hoffman, August 10th, 1917

  1917-08-10
• No image

  [NA336036], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 9th, 1917

  1917-08-09
• No image

  [NA336037], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 13th, 1917

  1917-08-13
• No image

  [NA336038], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 10th, 1917

  1917-08-10
• No image

  [NA336040], Technical Note, Archibald David Hoffman, August 15th, 1917

  1917-08-15
• No image

  [NA336042], Technical Note, Archibald David Hoffman, August 13th, 1917

  1917-08-13
• No image

  [NA336043], Technical Note, Archibald David Hoffman, August 14th, 1917

  1917-08-14
• No image

  [NA336045], Technical Note, Archibald David Hoffman, August 11th, 1917

  1917-08-11
• No image

  [NA336046], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 15th, 1917

  1917-08-15
• No image

  [NA336049], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 16th, 1917

  1917-08-16
• No image

  [NA336050], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 21st, 1917

  1917-08-21
• No image

  [NA336052], Technical Note, Archibald David Hoffman, August 17th, 1917

  1917-08-17
• No image

  [NA336053], Technical Note, Archibald David Hoffman, August 18th, 1917

  1917-08-18
• No image

  [NA336054], Technical Note, Archibald David Hoffman, August 20th, 1917

  1917-08-20
• No image

  [NA336055], Technical Note, Archibald David Hoffman, August 21st, 1917

  1917-08-21
• No image

  [NA336056], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 22nd, 1917

  1917-08-22
• No image

  [NA336057], Technical Note, Archibald David Hoffman, August 23rd, 1917

  1917-08-23
• No image

  [NA336058], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, August 21st, 1917

  1917-08-21
• No image

  [NA336062], Technical Note, Archibald David Hoffman, August 28th, 1917

  1917-08-28
• No image

  [NA336064], Technical Note, William Walter Dinwiddie, Archibald David Hoffman, August 31st, 1917

  1917-08-31
• No image

  [NA336067], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, September 4th, 1917

  1917-09-04
• No image

  [NA336076], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, September 15th, 1917

  1917-09-15
• No image

  [NA336087], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, October 11th, 1917

  1917-10-11
• No image

  [NA336096], Technical Note, William Walter Dinwiddie, Archibald David Hoffman, November 15th, 1917

  1917-11-15
• No image

  [NA336099], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, November 7th, 1917

  1917-11-07
• No image

  [NA336112], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, December 13th, 1917

  1917-12-13
• No image

  [NA337038], Technical Note, Archibald David Hoffman, William Walter Dinwiddie, March 16th, 1918

  1918-03-16
• No image

  [NB216001], Technical Note, Archibald David Hoffman, April 26th, 1916

  1916-04-26
• No image

  [NB216005], Technical Note, Archibald David Hoffman, April 26th, 1916

  1916-04-26
• No image

  [NB216011], Technical Note, Archibald David Hoffman, April 27th, 1916

  1916-04-27
• No image

  [NB216029], Technical Note, Archibald David Hoffman, April 28th, 1916

  1916-04-28
• No image

  [NB216032], Technical Note, Archibald David Hoffman, April 27th, 1916

  1916-04-27
• No image

  [NB216033], Technical Note, Archibald David Hoffman, April 28th, 1916

  1916-04-28
• No image

  [NB216035], Technical Note, Archibald David Hoffman, April 29th, 1916

  1916-04-29
• No image

  [NB216038], Technical Note, Archibald David Hoffman, April 27th, 1916

  1916-04-27
• No image

  [NB216040], Technical Note, Archibald David Hoffman, April 29th, 1916

  1916-04-29
• No image

  [NB216041], Technical Note, Archibald David Hoffman, April 27th, 1916

  1916-04-27