Items
Subject is exactly
Multiple telegraphy (duplex, quadruplex)
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[Z100FN], Letter from Thomas Alva Edison to Richard S Culley, April 3rd, 1876
1876-04-03 -
[Z100FJ], Letter from George Little to New York Tribune, March 11th, 1875
1875-03-11 -
[Z100FH], Letter from George Little to Telegrapher, August 10th, 1874
1874-08-10 -
[Z100EW], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, May 1st, 1874
1874-05-01 -
[Z100DJ], Letter from David Lumsden to Richard S Culley, December 15th, 1873
1873-12-15 -
[Z100CN], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, May 30th, 1873
1873-05-30 -
[Z100BT], Letter from Daniel H Craig to Frank Ives Scudamore, February 19th, 1873
1873-02-19 -
[Z100BS], Letter from Richard S Culley to Frank Ives Scudamore, February 19th, 1873
1873-02-19 -
[Z005AY], Letter from Thomas Alva Edison to William Henry Preece, May 19th, 1878
1878-05-19 -
[Z005AM], Letter from Henry Bentley to Thomas Alva Edison, February 5th, 1878
1878-02-05 -
[Z005AL], Letter from Thomas Alva Edison to William Henry Preece, February 11th, 1878
1878-02-11 -
[Z005AD], Letter from Thomas Alva Edison to William Henry Preece, August 20th, 1877
1877-08-20 -
[Z005AC], Letter from Thomas Alva Edison to William Henry Preece, September 3rd, 1877
1877-09-03 -
[X401DI], Speech, Theodore Miller Edison, January 24th, 1969
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[X194B], Article, New York Times, October 22nd, 1931
1931-10-22 -
[X194A], Letter from Thomas Alva Edison to Louis Wiley, February 18th, 1925
1925-02-18 -
[X174B1], Memorandum, Elihu Thomson, May 3rd, 1915
1915-05-03 -
[X154B3C683], Letter from Edward Hibberd Johnson to Uriah Hunt Painter, June 28th, 1879
1879-06-28 -
[X154B1AW1], Letter from Edward Hibberd Johnson to Hilborne Lewis Roosevelt, May 24th, 1878
1878-05-24 -
[X154A2AJ], Letter from Edward Hibberd Johnson to Uriah Hunt Painter, January 10th, 1878
1878-01-10 -
[X154A2AG], Letter from Thomas Alva Edison to Uriah Hunt Painter, January 7th, 1878
1878-01-07 -
[X154A2AB], Letter from Edward Hibberd Johnson to Uriah Hunt Painter, January 4th, 1878
1878-01-04 -
[X154A2AA], Letter from Edward Hibberd Johnson to Uriah Hunt Painter, January 3rd, 1878
1878-01-03 -
[X154A1AC], Letter from Josiah Custer Reiff to Uriah Hunt Painter, August 29th, 1877
1877-08-29 -
[X154A1AA], Letter from Thomas Thompson Eckert to Uriah Hunt Painter, November 30th, 1875
1875-11-30 -
[X119YC], Legal Decision, N.Y. City and County. Supreme Court, 1880
1880-00-00 -
[X119YB], Legal Decision, Joseph S Auerbach, July 26th, 1880
1880-07-26 -
[X119YA], Legal Pleading, George Bartlett Prescott, Gerritt Smith, Thomas Alva Edison, William Orton, Jr., Oliver Hazard Palmer, March 18th, 1880
1880-03-18 -
[X111AW] Letter, c. 1874
1874-00-00 -
[X154A3AK], Report from Edison Telephone Co of London Ltd, Edward Hibberd Johnson, September 4th, 1879
1879-09-04 -
[X107AE], Letter from Elisha Gray to George Frederick Barker, October 3rd, 1877
1877-10-03 -
[X099CW], Letter from Norvin Green to Wager Swayne, January 1882
1882-01-00 -
[X099CQ], Letter from William Orton to Anson Stager, February 3rd, 1875
1875-02-03 -
[X099CP], Letter from William Orton to Edward E Quimby, January 26th, 1875
1875-01-26 -
[X099CO], Letter from William Orton to Anson Stager, January 23rd, 1875
1875-01-23 -
[X099CN], Letter from William Orton to Grosvenor Porter Lowrey, January 20th, 1875
1875-01-20 -
[X099CM], Letter from William Orton to Anson Stager, December 15th, 1874
1874-12-15 -
[X099CL], Letter from William Orton to Joseph B Stearns, December 2nd, 1874
1874-12-02 -
[X099CG], Letter from William Orton to Anson Stager, March 21st, 1872
1872-03-21 -
[X099BE033], Minutes, American Speaking Telephone Co, June 11th, 1878
1878-06-11 -
[X099AM], Letter from Thomas Alva Edison to George Bartlett Prescott, August 20th, 1877
1877-08-20 -
[X099AL], Letter from Thomas Alva Edison to William Orton, August 17th, 1877
1877-08-17 -
[X099AH], Letter from Thomas Alva Edison to William Orton, March 15th, 1877
1877-03-15 -
[X099AG], Letter from George Bartlett Prescott to William Orton, December 4th, 1876
1876-12-04 -
[X099AF], Letter from Thomas Alva Edison to George Bartlett Prescott, December 4th, 1876
1876-12-04 -
[X099AC], Letter from Thomas Alva Edison to William Orton, February 15th, 1876
1876-02-15 -
[X099AB], Agreement, American District Telegraph Co, Thomas Alva Edison, April 18th, 1873
1873-04-18 -
[X099AA], Patent Caveat, Thomas Alva Edison, July 27th, 1868
1868-07-27 -
[X098C020], Letter from William Joseph Hammer to Thomas Thompson Eckert, January 18th, 1889
1889-01-18 -
[X098C001], Letter from William Joseph Hammer to Western Union, Thomas Thompson Eckert, December 21st, 1888
1888-12-21 -
[X090I], Letter from Henry C Nicholson to Mary (Mrs Henry C.) Nicholson, November 29th, 1880
1880-11-29 -
[X078AR], Letter from Western Electric Co, Enos M Barton to Samuel Stockton White, August 11th, 1879
1879-08-11 -
[X042AA], Letter from Josiah Custer Reiff to Benjamin Franklin Butler, May 4th, 1877
1877-05-04 -
[x035C], Letter from Thomas Alva Edison to Francis Eugene Nipher, January 14th, 1876
1876-01-14 -
[X031C], Report from Exhibition. Philadelphia Centennial (1876), Joseph Henry, William Thomson (Lord Kelvin), July 8th, 1876
1876-07-08 -
[X0980l] Reminiscence, c. 1900
1900-00-00 -
[X0980A] Reminiscence, c. 1900
1900-00-00 -
[X001E10B], Letter from Edward Hibberd Johnson to Thomas Commerford Martin, November 21st, 1908
1908-11-21 -
[X001E04A], Reminiscence, Patrick Bernard Delany, 1908
1908-00-00 -
[X012L2A], Technical Note, Thomas Alva Edison, March 23rd, 1877
1877-03-23 -
[W400E320], Report from Western Union, 1876
1876-00-00 -
[W400E316], Report from Western Union, 1875
1875-00-00 -
[W400D108], Letter from George Harrington to Thomas Thompson Eckert, January 6th, 1875
1875-01-06 -
[W400D103], Letter from George Harrington to Jay Gould, January 1st, 1875
1875-01-01 -
[W400C185B], Letter from Thomas Alva Edison to Jay Gould, February 2nd, 1877
1877-02-02 -
[W400B437], Minutes, Atlantic and Pacific Telegraph Co, William Henry Baker, January 11th, 1875
1875-01-11 -
[W400B412], Letter from George Harrington to Atlantic and Pacific Telegraph Co, Thomas Thompson Eckert, March 7th, 1875
1875-03-07 -
[W400B411], Letter from George Harrington to Thomas Thompson Eckert, January 22nd, 1875
1875-01-22 -
[W400B404A], Letter from Jay Gould to George Harrington, February 15th, 1875
1875-02-15 -
[W400B403B], Letter from Jay Gould to George Harrington, February 2nd, 1875
1875-02-02 -
[W400B403A], Letter from Jay Gould to George Harrington, January 25th, 1875
1875-01-25 -
[W400B400A], Letter from Jay Gould to George Harrington, January 7th, 1875
1875-01-07 -
[W400B399A], Letter from Jay Gould to George Harrington, January 5th, 1875
1875-01-05 -
[W400B382], Letter to George Harrington, April 14th, 1876
1876-04-14 -
[W400B318], Legal Testimony, George Harrington, October 1880
1880-10-00 -
[W400B307A], Letter from Josiah Custer Reiff to Jay Gould, August 1875
1875-08-00 -
[W400B305], Letter from Jay Gould to George Harrington, July 7th, 1875
1875-07-07 -
[W400B304], Letter to Thomas Thompson Eckert, January 6th, 1875
1875-01-06 -
[W400B296], Report from Atlantic and Pacific Telegraph Co, 1875
1875-00-00 -
[W400B295], Report from Atlantic and Pacific Telegraph Co, April 28th, 1875
1875-04-28 -
[W400B292], Report from Atlantic and Pacific Telegraph Co, December 10th, 1875
1875-12-10 -
[W400B291], Bill/Receipt from Automatic Telegraph Co, Alfred Nelson to Atlantic and Pacific Telegraph Co, April 12th, 1875
1875-04-12 -
[W400B290B], Bill/Receipt from Thomas Alva Edison to Jay Gould, January 18th, 1875
1875-01-18 -
[W400B290A], Bill/Receipt from Edison and Murray to Atlantic and Pacific Telegraph Co, March 22nd, 1875
1875-03-22 -
[W400B289], Bill/Receipt from Edison and Murray to Atlantic and Pacific Telegraph Co, March 29th, 1875
1875-03-29 -
[W400B288B], Bill/Receipt from Lemuel William Serrell to Jay Gould, March 6th, 1875
1875-03-06 -
[W400B288A], Bill/Receipt from Edison and Murray to Jay Gould, March 15th, 1875
1875-03-15 -
[W400B287], Bill/Receipt from Atlantic and Pacific Telegraph Co to Edison and Murray, Parker and Keasbey, Jay Gould, Thomas Alva Edison, Lemuel William Serrell, March 31st, 1875
1875-03-31 -
[W400B285A], Bill/Receipt from Thomas Alva Edison to Jay Gould, January 7th, 1875
1875-01-07 -
[W400B280], Agreement, George Harrington, Jay Gould, Thomas Alva Edison, March 24th, 1875
1875-03-24 -
[W400B224], Legal Testimony, Josiah Custer Reiff, June 1880
1880-06-00 -
[W400B172], Legal Testimony, Josiah Custer Reiff, June 1880
1880-06-00 -
[W400B156], Legal Testimony, Samuel Bowne Parsons, January 1880
1880-01-00 -
[W400B145], Letter from Robert W Russell to Jay Gould, Western Union, Atlantic and Pacific Telegraph Co, August 27th, 1875
1875-08-27 -
[W400B143], Letter from Robert W Russell to Atlantic and Pacific Telegraph Co, Jay Gould, May 9th, 1876
1876-05-09 -
[W400B140], Memorandum, George Harrington, 1875
1875-00-00 -
[W400B104], Legal Testimony, George Harrington, October 1879
1879-10-00 -
[W400A], Legal Testimony, Henry Dodge Estabrook, Rush Taggart, 1910
1910-00-00 -
[W100DJ019C], Technical Note, Thomas Alva Edison, April 30th, 1877
1877-04-30 -
[W100DJ019B], Technical Note, Thomas Alva Edison, May 15th, 1877
1877-05-15