Items

• [N137124B], Technical Note, William Joseph Hammer, November 1st, 1880
  1880-11-01
• [N137125], Technical Note, William Joseph Hammer, November 2nd, 1880
  1880-11-02
• [N137128], Technical Note, William Joseph Hammer, November 6th, 1880
  1880-11-06
• [N137131], Technical Note, William Joseph Hammer, December 2nd, 1880
  1880-12-02
• [N16500A], Technical Note, Francis Robbins Upton, William Joseph Hammer, 1880
  1880-00-00
• [SB012AAR], List, William Joseph Hammer, 1880
  1880-00-00
• [SC89117a], Clipping, Electrical World, William Joseph Hammer, August 31st, 1889
  1889-08-31
• [SC89170A], Clipping, Galignani's Messenger, William Joseph Hammer, September 25th, 1889
  1889-09-25
• [X0980A] Reminiscence, William Joseph Hammer, Undated
• [X0980B] Reminiscence, William Joseph Hammer, Undated
• [X0980C] Reminiscence, William Joseph Hammer, Undated
• [X0980D] Reminiscence, William Joseph Hammer, Undated
• [X0980D1] Reminiscence, William Joseph Hammer, Undated
• [X0980E] Reminiscence, William Joseph Hammer, Undated
• [X0980E1] Reminiscence, William Joseph Hammer, Undated
• [X0980F] Reminiscence, William Joseph Hammer, Undated
• [X0980G] Reminiscence, William Joseph Hammer, Undated
• [X0980H] Reminiscence, William Joseph Hammer, Undated
• [X0980I] Reminiscence, William Joseph Hammer, Undated
• [X0980J] Reminiscence, William Joseph Hammer, Undated
• [X0980K] Reminiscence, William Joseph Hammer, Undated
• [X0980l] Reminiscence, William Joseph Hammer, Undated
• [X0980M] Reminiscence, William Joseph Hammer, Undated
• [X0980N] Reminiscence, William Joseph Hammer, Undated
• [X098A002A] List, Undated
• [X098A004], Letter from William Joseph Hammer to Thomas Alva Edison, February 19th, 1881
  1881-02-19
• [X098A006], Letter from William Joseph Hammer to Charles Batchelor, September 1st, 1881
  1881-09-01
• [X098A008], Letter from William Joseph Hammer to William Alexander Hammer, November 13th, 1881
  1881-11-13
• [X098A012], Letter from William Joseph Hammer to Thomas Alva Edison, 1881
  1881-00-00
• [X098A016] Reminiscence, William Joseph Hammer, Undated
• [X098A023b], Letter from William Joseph Hammer to Phillips Bros, December 15th, 1884
  1884-12-15
• [X098A040], Letter from William Joseph Hammer to Francis Robbins Upton, June 6th, 1889
  1889-06-06
• [X098A051], Reminiscence, William Joseph Hammer, 1889
  1889-00-00
• [X098A067], Letter from William Joseph Hammer to Thomas Alva Edison, December 7th, 1894
  1894-12-07
• [X098A072], Letter from William Joseph Hammer to Thomas Alva Edison, August 26th, 1903
  1903-08-26
• [X098A082], Letter from William Joseph Hammer to Francis Jehl, March 31st, 1920
  1920-03-31
• [X098A084], Letter from William Joseph Hammer to Thomas Alva Edison, February 2nd, 1925
  1925-02-02
• [X098A086], Letter from William Joseph Hammer to Thomas Alva Edison, May 29th, 1925
  1925-05-29
• [X098A087], Letter from William Joseph Hammer to Henry Ford, March 3rd, 1927
  1927-03-03
• [X098A088], Letter from William Joseph Hammer to Henry Ford, March 3rd, 1927
  1927-03-03
• [X098A089], Letter from William Joseph Hammer to Thomas Alva Edison, October 20th, 1927
  1927-10-20
• [X098A091], Letter from William Joseph Hammer to Frank Campsall, April 10th, 1928
  1928-04-10
• [X098A092], Letter from William Joseph Hammer to Henry Ford, July 25th, 1928
  1928-07-25
• [X098A099], Letter from William Joseph Hammer to Francis Jehl, January 18th, 1929
  1929-01-18
• [X098A101], Letter from William Joseph Hammer to Thomas Alva Edison, November 19th, 1929
  1929-11-19
• [X098A102], Letter from William Joseph Hammer to Thomas Alva Edison, February 19th, 1930
  1930-02-19
• [X098A103], Letter from William Joseph Hammer to Thomas Alva Edison, December 17th, 1930
  1930-12-17
• [X098B001], Letter from William Joseph Hammer to Thomas Alva Edison, November 10th, 1903
  1903-11-10
• [X098B002], Letter from William Joseph Hammer to Thomas Alva Edison, November 11th, 1903
  1903-11-11
• [X098B003], Letter from William Joseph Hammer to Thomas Alva Edison, November 20th, 1903
  1903-11-20
• [X098B004], Letter from William Joseph Hammer to Thomas Alva Edison, November 28th, 1903
  1903-11-28
• [X098B005], Letter from William Joseph Hammer to Thomas Alva Edison, December 5th, 1903
  1903-12-05
• [X098B006], Letter from William Joseph Hammer to Thomas Alva Edison, December 4th, 1903
  1903-12-04
• [X098B007], Letter from William Joseph Hammer to Thomas Alva Edison, December 14th, 1903
  1903-12-14
• [X098B008], Letter from William Joseph Hammer to Thomas Alva Edison, December 29th, 1903
  1903-12-29
• [X098B009], Letter from William Joseph Hammer to Thomas Alva Edison, December 30th, 1903
  1903-12-30
• [X098B010], Letter from William Joseph Hammer to Thomas Alva Edison, January 2nd, 1904
  1904-01-02
• [X098B011], Letter from William Joseph Hammer to Thomas Alva Edison, January 26th, 1904
  1904-01-26
• [X098B012], Letter from William Joseph Hammer to Thomas Alva Edison, June 22nd, 1904
  1904-06-22
• [X098B013], Letter from William Joseph Hammer, 1904
  1904-00-00
• [X098B014], Letter from William Joseph Hammer to Francis Jehl, October 17th, 1904
  1904-10-17
• [X098C001], Letter from William Joseph Hammer to Western Union, Thomas Thompson Eckert, December 21st, 1888
  1888-12-21
• [X098C002], Letter from William Joseph Hammer to Samuel Insull, December 28th, 1888
  1888-12-28
• [X098C003], Letter from William Joseph Hammer to Edward Hibberd Johnson, December 29th, 1888
  1888-12-29
• [X098C004], Letter from William Joseph Hammer to Edison Machine Works, December 31st, 1888
  1888-12-31
• [X098C005], Letter from William Joseph Hammer to Edison Machine Works, December 31st, 1888
  1888-12-31
• [X098C006], Letter from William Joseph Hammer to Eastern Electric Cable Co, December 31st, 1888
  1888-12-31
• [X098C007], Letter from William Joseph Hammer to Callender Insulating and Waterproofing Co, December 31st, 1888
  1888-12-31
• [X098C008], Letter from William Joseph Hammer to William Dennis Marks, January 2nd, 1889
  1889-01-02
• [X098C009], Letter from William Joseph Hammer to Samuel Insull, January 5th, 1889
  1889-01-05
• [X098C010], Letter from William Joseph Hammer to Francis Robbins Upton, January 10th, 1889
  1889-01-10
• [X098C011], Letter from William Joseph Hammer to William J Jenks, January 12th, 1889
  1889-01-12
• [X098C012], Letter from William Joseph Hammer to Franklin Institute, William Dennis Marks, January 12th, 1889
  1889-01-12
• [X098C013], Letter from William Joseph Hammer to Franklin Institute, William Henry Wahl, January 12th, 1889
  1889-01-12
• [X098C014], Letter from William Joseph Hammer to Francis Robbins Upton, January 12th, 1889
  1889-01-12
• [X098C015], Letter from William Joseph Hammer to Bergmann & Co, January 15th, 1889
  1889-01-15
• [X098C016], Letter from William Joseph Hammer to Harry Bates Thayer, Western Electric Co, January 16th, 1889
  1889-01-16
• [X098C017], Letter from William Joseph Hammer to Edison Electric Illuminating Co (New York), John Irvin Beggs, January 16th, 1889
  1889-01-16
• [X098C018], Letter from William Joseph Hammer to Edward Hibberd Johnson, January 16th, 1889
  1889-01-16
• [X098C019], Letter from William Joseph Hammer to S M Wilson, January 18th, 1889
  1889-01-18
• [X098C020], Letter from William Joseph Hammer to Thomas Thompson Eckert, January 18th, 1889
  1889-01-18
• [X098C021], Letter from William Joseph Hammer to William Dennis Marks, January 21st, 1889
  1889-01-21
• [X098C022], Letter from William Joseph Hammer to Edison Machine Works, January 24th, 1889
  1889-01-24
• [X098D], Technical Note, William Joseph Hammer, January 1893
  1893-01-00
• [X098E00], Technical Note, William Joseph Hammer, 1879
  1879-00-00
• [X098E01], Technical Note, William Joseph Hammer, March 1880
  1880-03-00
• [X098E02], Technical Note, William Joseph Hammer, July 8th, 1880
  1880-07-08
• [X098E03], Technical Note, William Joseph Hammer, 1880
  1880-00-00
• [X098E04], Technical Note, William Joseph Hammer, February 24th, 1881
  1881-02-24
• [X098E05], Technical Note, William Joseph Hammer, March 1881
  1881-03-00
• [X098E06], Technical Note, William Joseph Hammer, April 1881
  1881-04-00
• [X098E07], Technical Note, William Joseph Hammer, December 8th, 1881
  1881-12-08
• [X098E08], Technical Note, William Joseph Hammer, 1881
  1881-00-00
• [X098E09], Technical Note, William Joseph Hammer, 1881
  1881-00-00
• [X098E10], Technical Note, William Joseph Hammer, 1881
  1881-00-00
• [X098E11], Technical Note, William Joseph Hammer, 1881
  1881-00-00
• [X098E12] Technical Note, 1881-1889
  1881-1889
• [X098E13] Technical Note, 1881-1889
  1881-1889
• [X098E15], Technical Note, William Joseph Hammer, October 24th, 1882
  1882-10-24
• [X098E16], Technical Note, William Joseph Hammer, October 1882
  1882-10-00