Items
Items
Subject is exactly
Research and development
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[D7702ZAA], Letter from Thomas Alva Edison to J F Blackman, June 22nd, 1877
1877-06-22 -
[D7702ZEF], Agreement, Thomas Alva Edison, Western Union, 1877
1877-00-00 -
[D7702ZEG], Agreement, Western Union, Thomas Alva Edison, 1877
1877-00-00 -
[D7702ZEH], Agreement, Western Union, Thomas Alva Edison, 1877
1877-00-00 -
[D7718G1], Bill/Receipt from Thomas Alva Edison to Domestic Telegraph Co, September 20th, 1877
1877-09-20 -
[D7819X], Telegram from Thomas Alva Edison to Stockton L Griffin, October 14th, 1878
1878-10-14 -
[D7819ZCF1], Letter from H S Woodbury to Thomas Alva Edison, November 18th, 1878
1878-11-18 -
[D7826ZGN], Technical Note, John Kruesi, December 10th, 1878
1878-12-10 -
[D7838ZCS], Letter from Frank Julian Sprague to Thomas Alva Edison, June 16th, 1878
1878-06-16 -
[D8020ZAG], Letter from Simon Newcomb to Thomas Alva Edison, January 19th, 1880
1880-01-19 -
[D8104ZAT], Letter from E T Cox to Thomas Alva Edison, March 14th, 1881
1881-03-14 -
[D8104ZBC], Letter from George Edward Gouraud to Thomas Alva Edison, April 23rd, 1881
1881-04-23 -
[D8104ZBG], Letter from Charles Turner Hughes to Thomas Alva Edison, May 5th, 1881
1881-05-05 -
[D8104ZBN], Letter from Samuel Insull to George Edward Gouraud, June 11th, 1881
1881-06-11 -
[D8104ZBO], Letter from George Edward Gouraud to Thomas Alva Edison, June 15th, 1881
1881-06-15 -
[D8104ZBU], Letter from Samuel Insull to George Edward Gouraud, July 1st, 1881
1881-07-01 -
[D8104ZCE], Letter from George Edward Gouraud to Samuel Insull, July 30th, 1881
1881-07-30 -
[D8106A], Letter from Charles Cuttriss to Thomas Alva Edison, February 20th, 1881
1881-02-20 -
[D8106B], Letter from Thomas Alva Edison to Charles Cuttriss, February 23rd, 1881
1881-02-23 -
[D8106I], Letter from Manuel Gallegos to Thomas Alva Edison, October 17th, 1881
1881-10-17 -
[D8106K], Letter from Miss Cecil C Harvey to Thomas Alva Edison, November 6th, 1881
1881-11-06 -
[D8106L], Letter from Penny Paper, R B Ross to Thomas Alva Edison, November 12th, 1881
1881-11-12 -
[D8123I], Letter from Francis Robbins Upton to Thomas Alva Edison, February 7th, 1881
1881-02-07 -
[D8123ZBJ], Letter from Alfred Haid to Thomas Alva Edison, May 3rd, 1881
1881-05-03 -
[D8123ZBK], Letter from Francis Robbins Upton to Thomas Alva Edison, May 4th, 1881
1881-05-04 -
[D8123ZBN], Letter from Alfred Haid to Thomas Alva Edison, May 6th, 1881
1881-05-06 -
[D8123ZBO], Letter from Francis Robbins Upton to Thomas Alva Edison, May 6th, 1881
1881-05-06 -
[D8123ZBQ], Letter from Edward Goodrich Acheson to Thomas Alva Edison, May 10th, 1881
1881-05-10 -
[D8123ZBS], Letter from William Joseph Hammer to Samuel Insull, May 10th, 1881
1881-05-10 -
[D8123ZCI], Memorandum, Edward Leamington Nichols, June 8th, 1881
1881-06-08 -
[D8123ZCJ], Letter from Francis Robbins Upton to Thomas Alva Edison, June 9th, 1881
1881-06-09 -
[D8129ZBJ], Letter from Alfred Abernethy Cowles, Ansonia Brass and Copper Co to Thomas Alva Edison, September 19th, 1881
1881-09-19 -
[D8130R], Letter from John Kruesi to Thomas Alva Edison, August 22nd, 1881
1881-08-22 -
[D8133O], Letter from William Thomson (Lord Kelvin) to George Edward Gouraud, April 30th, 1881
1881-04-30 -
[D8136H], Letter from Francis Jehl to Thomas Alva Edison, April 7th, 1881
1881-04-07 -
[D8136I], Letter from Francis Jehl to Samuel Insull, April 11th, 1881
1881-04-11 -
[D8136ZAL], Letter from Domestic Telegraph Co, Frederick Tysoe Fearey to Thomas Alva Edison, September 15th, 1881
1881-09-15 -
[D8137ZBX], Letter from John W Lawson to Thomas Alva Edison, November 4th, 1881
1881-11-04 -
[D8235G1], Test Report, William Symes Andrews, April 14th, 1882
1882-04-14 -
[D8243I], Letter from Samuel Insull to Charles Batchelor, September 28th, 1882
1882-09-28 -
[D8244S], Letter from John F Ott to Thomas Alva Edison, October 5th, 1882
1882-10-05 -
[D8244T], Letter from John F Ott to Thomas Alva Edison, October 7th, 1882
1882-10-07 -
[D8249D], Agreement, Oregon and Trans-Continental Co, Thomas Alva Edison, March 2nd, 1882
1882-03-02 -
[D8316ADH], Letter from Thomas Alva Edison to Albert B Chandler, June 27th, 1883
1883-06-27 -
[D8316AFX], Letter from Thomas Alva Edison to John A Winebrenner, July 13th, 1883
1883-07-13 -
[D8316AGV], Letter from Thomas Alva Edison to Edison Lamp Co, July 16th, 1883
1883-07-16 -
[D8316AIZ], Letter from Thomas Alva Edison to Phillips B Shaw, July 26th, 1883
1883-07-26 -
[D8316AJB], Letter from Thomas Alva Edison to Edison Electric Illuminating Co (Sunbury), Frank H McCormick, July 26th, 1883
1883-07-26 -
[D8316AMM], Letter from Thomas Alva Edison to J R Merell, August 8th, 1883
1883-08-08 -
[D8316APX], Letter from Thomas Alva Edison to Mary E Odell, August 25th, 1883
1883-08-25 -
[D8316AZJ], Letter from Samuel Insull to Bergmann & Co, October 9th, 1883
1883-10-09 -
[D8316BNV], Letter from Samuel Insull to Harris and Robinson, December 4th, 1883
1883-12-04 -
[D8316BSG], Letter from Thomas Alva Edison to Edison Electric Light Co, Sherburne Blake Eaton, December 13th, 1883
1883-12-13 -
[D8322L], Letter from Pardon Armington to Thomas Alva Edison, February 5th, 1883
1883-02-05 -
[D8322M], Letter from Thomas Alva Edison to Pardon Armington, February 6th, 1883
1883-02-06 -
[D8323P1], Test Report, Edison Electric Light Co, Charles Lorenzo Clarke, July 1883
1883-07-00 -
[D8324H], Letter from Charles Schenck Bradley to Thomas Alva Edison, February 19th, 1883
1883-02-19 -
[D8324I], Letter from Bergmann & Co to Samuel Insull, February 24th, 1883
1883-02-24 -
[D8324ZAU], Letter from Bergmann & Co to Samuel Insull, November 26th, 1883
1883-11-26 -
[D8325N], Letter from Spencer Borden to Thomas Alva Edison, March 3rd, 1883
1883-03-03 -
[D8325ZBE], Letter from Sidney Borden Paine to Thomas Alva Edison, July 6th, 1883
1883-07-06 -
[D8326G], Letter from Joseph Casho to Thomas Alva Edison, May 23rd, 1883
1883-05-23 -
[D8330B], Letter from William Symes Andrews to Thomas Alva Edison, January 5th, 1883
1883-01-05 -
[D8330C], Letter from William Symes Andrews to Thomas Alva Edison, January 9th, 1883
1883-01-09 -
[D8330D], Letter from William Symes Andrews to Samuel Insull, January 23rd, 1883
1883-01-23 -
[D8330E], Test Report, William Symes Andrews, January 23rd, 1883
1883-01-23 -
[D8330F], Letter from William Symes Andrews to Thomas Alva Edison, January 26th, 1883
1883-01-26 -
[D8330G], Test Report, William Symes Andrews, January 25th, 1883
1883-01-25 -
[D8330H], Letter from William Symes Andrews to Thomas Alva Edison, March 6th, 1883
1883-03-06 -
[D8330I], Letter from William Symes Andrews to Thomas Alva Edison, March 6th, 1883
1883-03-06 -
[D8330J], Test Report, Edison Electric Light Co, March 6th, 1883
1883-03-06 -
[D8330K], Letter from William Symes Andrews to Thomas Alva Edison, March 8th, 1883
1883-03-08 -
[D8330L], Letter from William Symes Andrews to Thomas Alva Edison, March 8th, 1883
1883-03-08 -
[D8330M], Letter from William Symes Andrews to Thomas Alva Edison, March 12th, 1883
1883-03-12 -
[D8330N], Letter from William Symes Andrews to Thomas Alva Edison, March 14th, 1883
1883-03-14 -
[D8330O], Letter from William Symes Andrews to Thomas Alva Edison, March 22nd, 1883
1883-03-22 -
[D8330P], Letter from William Symes Andrews to Thomas Alva Edison, March 24th, 1883
1883-03-24 -
[D8330Q], Letter from William Symes Andrews to Thomas Alva Edison, April 3rd, 1883
1883-04-03 -
[D8330R], Letter from William Symes Andrews to Thomas Alva Edison, April 9th, 1883
1883-04-09 -
[D8330R1], Letter from William Symes Andrews to Thomas Alva Edison, April 13th, 1883
1883-04-13 -
[D8330S], Letter from William Symes Andrews to Thomas Alva Edison, April 13th, 1883
1883-04-13 -
[D8330U], Letter from William Symes Andrews to Thomas Alva Edison, April 16th, 1883
1883-04-16 -
[D8330V], Letter from William Symes Andrews to Thomas Alva Edison, April 18th, 1883
1883-04-18 -
[D8330X], Letter from William Symes Andrews to Thomas Alva Edison, April 23rd, 1883
1883-04-23 -
[D8330Y], Test Report, Edison Electric Light Co, April 23rd, 1883
1883-04-23 -
[D8330ZAA], Test Report, William Symes Andrews, April 25th, 1883
1883-04-25 -
[D8330ZAA1], Memorandum, William Symes Andrews, April 24th, 1883
1883-04-24 -
[D8330ZAC], Letter from William Symes Andrews to Thomas Alva Edison, April 27th, 1883
1883-04-27 -
[D8330ZAD], Letter from William Symes Andrews to Thomas Alva Edison, April 28th, 1883
1883-04-28 -
[D8330ZAE], Test Report, William Symes Andrews, April 28th, 1883
1883-04-28 -
[D8330ZAI], Test Report, William Symes Andrews, May 12th, 1883
1883-05-12 -
[D8330ZAK], Test Report, William Symes Andrews, May 18th, 1883
1883-05-18 -
[D8330ZAL], Letter from Charles Leavitt Edgar to Thomas Alva Edison, May 21st, 1883
1883-05-21 -
[D8330ZAM], Test Report, Charles Leavitt Edgar, May 21st, 1883
1883-05-21 -
[D8330ZAP], Letter from Charles Leavitt Edgar to Charles Lorenzo Clarke, June 15th, 1883
1883-06-15 -
[D8330ZAR], Test Report, William Kennedy Laurie Dickson, July 18th, 1883
1883-07-18 -
[D8330ZAT], Test Report, Edison Electric Light Co, August 15th, 1883
1883-08-15 -
[D8330ZAU], Test Report, Edison Electric Light Co, August 16th, 1883
1883-08-16 -
[D8330ZAV], Test Report, Edison Electric Light Co, August 16th, 1883
1883-08-16 -
[D8330ZAW], Letter from Jacob Chester Chamberlain to Thomas Alva Edison, August 17th, 1883
1883-08-17