Items
Items
Subject is exactly
Microphone and other acoustic devices
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[NP120093], Diary, Thomas Alva Edison, November 26th, 1919
1919-11-26 -
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[NS02AAX], Technical Note, John F Ott, Thomas Alva Edison, April 21st, 1902
1902-04-21 -
[NS7802A], Technical Note, Thomas Alva Edison, April 30th, 1878
1878-04-30 -
[NS7802B], Technical Note, Thomas Alva Edison, May 10th, 1878
1878-05-10 -
[NS7802C], Technical Note, Charles Batchelor, Thomas Alva Edison, May 17th, 1878
1878-05-17 -
[NS7802D], Technical Note, Charles Batchelor, June 17th, 1878
1878-06-17 -
[NS7802E], Technical Note, Thomas Alva Edison, June 19th, 1878
1878-06-19 -
[NS7802F], Technical Note, Thomas Alva Edison, John Kruesi, Charles Batchelor, Martin N Force, George E Carman, June 21st, 1878
1878-06-21 -
[NS7802F1], Technical Note, Thomas Alva Edison, June 21st, 1878
1878-06-21 -
[NS7802G], Technical Note, John Kruesi, Thomas Alva Edison, June 22nd, 1878
1878-06-22 -
[NS7802H], Technical Note, Thomas Alva Edison, Charles Batchelor, June 23rd, 1878
1878-06-23 -
[NS7802I], Technical Note, Charles Batchelor, June 28th, 1878
1878-06-28 -
[NS7802J], Technical Note, Thomas Alva Edison, June 29th, 1878
1878-06-29 -
[NS7802K], Technical Note, Thomas Alva Edison, Charles Batchelor, July 2nd, 1878
1878-07-02 -
[NS7802L], Technical Note, John Kruesi, July 3rd, 1878
1878-07-03 -
[NS7802M], Technical Note, Thomas Alva Edison, July 6th, 1878
1878-07-06 -
[NS7802N], Technical Note, Charles Batchelor, John Kruesi, July 17th, 1878
1878-07-17 -
[NS7802O], Technical Note, John Kruesi, July 27th, 1878
1878-07-27 -
[NS7802P], Technical Note, Charles Batchelor, John Kruesi, August 1878
1878-08-00 -
[NS7802Q], Technical Note, Thomas Alva Edison, John Kruesi, September 6th, 1878
1878-09-06 -
[NS7802R], Technical Note, Charles Batchelor, Thomas Alva Edison, September 27th, 1878
1878-09-27 -
[NS7802R1], Technical Note, Charles Batchelor, Thomas Alva Edison, September 27th, 1878
1878-09-27 -
[NS7802S], Technical Note, John Kruesi, John F Ott, November 30th, 1878
1878-11-30 -
[NS7802T], Technical Note, Charles Batchelor, Thomas Alva Edison, 1878
1878-00-00 -
[NS7802U], Technical Note, Thomas Alva Edison, 1878
1878-00-00 -
[NS7808A], Technical Note, Charles Batchelor, John Kruesi, May 1st, 1878
1878-05-01 -
[NS7808A1], Technical Note, Thomas Alva Edison, June 10th, 1878
1878-06-10 -
[NS7808B], Technical Note, Thomas Alva Edison, Charles Batchelor, 1878
1878-00-00 -
[NV14015], Technical Note, Thomas Alva Edison, January 17th, 1878
1878-01-17 -
[NV14127], Technical Note, Thomas Alva Edison, June 19th, 1878
1878-06-19 -
[NV14129] Technical Note, June 19th, 1878
1878-06-19 -
[NV14132], Technical Note, Thomas Alva Edison, John Kruesi, Charles Batchelor, Martin N Force, George E Carman, June 21st, 1878
1878-06-21 -
[NV14157] Technical Note, September 27th, 1878
1878-09-27 -
[PA001], Letter from Thomas Alva Edison to New York Tribune, June 6th, 1878
1878-06-06 -
[PA002], Letter from Thomas Alva Edison to Scientific American, June 24th, 1878
1878-06-24 -
[PA003], Letter from Thomas Alva Edison to New York Tribune, July 13th, 1878
1878-07-13 -
[PA004], Letter from Thomas Alva Edison to New York Tribune, June 26th, 1878
1878-06-26 -
[PA008], Letter from Thomas Alva Edison to Telegraphic Journal, March 27th, 1879
1879-03-27 -
[PT032AHN], Patent Application, Thomas Alva Edison, September 13th, 1906
1906-09-13 -
[PT032AHX], Patent Application, Thomas Alva Edison, June 11th, 1907
1907-06-11 -
[PT032AHX1], Technical Note, Thomas Alva Edison, May 1st, 1907
1907-05-01 -
[PT032AIM], Patent Application, Thomas Alva Edison, March 13th, 1908
1908-03-13 -
[PT032AIM2], Letter from William Eugene Horne to Frank Lewis Dyer, February 26th, 1908
1908-02-26 -
[PT032AIM3], Letter from William Horatio Mason to Frank Lewis Dyer, March 3rd, 1908
1908-03-03 -
[PT5103], Patent Application, Thomas Alva Edison, October 23rd, 1918
1918-10-23 -
[PT5103A], Technical Note, Thomas Alva Edison, October 1918
1918-10-00 -
[PT5119A], Letter from Thomas Alva Edison to William Abbott Hardy, November 26th, 1919
1919-11-26 -
[SB031052], Interview, Thomas Alva Edison, March 21st, 1878
1878-03-21 -
[SB031093], Interview, Thomas Alva Edison, 1878
1878-00-00 -
[SB031094], Interview, Thomas Alva Edison, April 1st, 1878
1878-04-01 -
[SB032012], Letter from Thomas Alva Edison to English Mechanic, July 11th, 1878
1878-07-11 -
[SB032017], Letter from Thomas Alva Edison to Telegraphic Journal, June 26th, 1878
1878-06-26 -
[SB032037], Letter from Thomas Alva Edison to Engineering, July 8th, 1878
1878-07-08 -
[SB032128], Publication, Edward Hibberd Johnson, 1878
1878-00-00 -
[SM029139], Letter from Thomas Alva Edison to William Henry Preece, William Thomson (Lord Kelvin), June 5th, 1878
1878-06-05 -
[SM029143], Letter from Thomas Alva Edison to New York Tribune, June 6th, 1878
1878-06-06 -
[SM029144], Interview, Thomas Alva Edison, June 8th, 1878
1878-06-08 -
[SM029161], Letter from Thomas Alva Edison to New York Tribune, June 6th, 1878
1878-06-06 -
[SM051077], Letter from Thomas Alva Edison to Scientific American, November 1879
1879-11-00 -
[W100ABY], Patent Caveat, Thomas Alva Edison, June 15th, 1889
1889-06-15 -
[W100ABZ], Patent Caveat, Thomas Alva Edison, July 29th, 1889
1889-07-29 -
[W100DBA003], Legal Testimony, Thomas Alva Edison, January 23rd, 1880
1880-01-23 -
[W100DBB], Legal Testimony, Lemuel Wright Serrell, 1880
1880-00-00 -
[X001C6CZ], Telegram from William Henry Meadowcroft to Ernest Gustav Liebold, September 14th, 1928
1928-09-14 -
[X012AB], Letter from Emile Berliner to Gardiner Greene Hubbard, August 11th, 1878
1878-08-11 -
[X012G1AP], Letter from George Lothrop Bradley to Gardiner Greene Hubbard, March 16th, 1878
1878-03-16 -
[X012G1AR], Letter from Gardiner Greene Hubbard to George Lothrop Bradley, March 18th, 1878
1878-03-18 -
[X012G1AU], Letter from Charles Augustus Cheever to George Lothrop Bradley, March 18th, 1878
1878-03-18 -
[X012G1AY], Letter from George Lothrop Bradley to Gardiner Greene Hubbard, March 21st, 1878
1878-03-21 -
[X012G1BP], Letter from Thomas Augustus Watson to Gardiner Greene Hubbard, April 20th, 1878
1878-04-20 -
[X012G1BV], Letter from Charles Augustus Cheever to Gardiner Greene Hubbard, May 21st, 1878
1878-05-21 -
[X095EL], Letter from Newman Henry Holland to William Henry Meadowcroft, April 9th, 1920
1920-04-09 -
[X018A3AB13], Letter from Charles Edison to Mina Miller (Mrs Thomas A.) Edison, September 1910
1910-09-00 -
[X018C3AY2], Letter from Halbert Kellogg Hitchcock to Mina Miller (Mrs Thomas A.) Edison, March 21st, 1930
1930-03-21 -
[X018C3AY3], Letter from Halbert Kellogg Hitchcock to Theodore Miller Edison, March 21st, 1930
1930-03-21 -
[X078AW], Telegram from Horace H Eldred to Samuel Stockton White, October 17th, 1879
1879-10-17 -
[X095EB], Letter from Thomas Alva Edison to Newman Henry Holland, February 1918
1918-02-00 -
[X098HAK], Technical Note, William Joseph Hammer, May 1880
1880-05-00 -
[X154A2BN], Letter from Theodore T Wing to Uriah Hunt Painter, July 5th, 1878
1878-07-05 -
[X154A2BP], Letter from A W McPherson to Uriah Hunt Painter, July 13th, 1878
1878-07-13 -
[X154A2BQ], Letter from Thomas Alva Edison to A W McPherson, 1878
1878-00-00 -
[X154A2BR], Letter from Edward Hibberd Johnson to Uriah Hunt Painter, July 15th, 1878
1878-07-15 -
[X154A2BU], Letter from Stockton L Griffin to Uriah Hunt Painter, July 22nd, 1878
1878-07-22 -
[X154A3AK], Report from Edison Telephone Co of London Ltd, Edward Hibberd Johnson, September 4th, 1879
1879-09-04 -
[X154A3BE], Letter from Edward Hibberd Johnson to Uriah Hunt Painter, February 24th, 1881
1881-02-24 -
[X121EA], Letter from Thomas Alva Edison to Olive Logan, July 8th, 1878
1878-07-08 -
[X128B005], Technical Note, John F Ott, Thomas Alva Edison, December 6th, 1878
1878-12-06 -
[X128B015], Technical Note, John F Ott, January 2nd, 1879
1879-01-02 -
[X128B016], Technical Note, John F Ott, January 3rd, 1879
1879-01-03 -
[X128B042], Technical Note, John F Ott, Thomas Alva Edison, 1881
1881-00-00 -
[X128C06D1], Technical Note, 1917
1917-00-00 -
[X128C06I], Letter from Henry Jervey to Thomas Alva Edison, January 11th, 1919
1919-01-11 -
[X128C31A], Letter from Thomas Alva Edison to Josephus Daniels, April 30th, 1917
1917-04-30 -
[X154A2AP], Letter from Thomas Alva Edison to Uriah Hunt Painter, March 4th, 1878
1878-03-04 -
[X154A2AR], Letter from Thomas Alva Edison to Uriah Hunt Painter, March 8th, 1878
1878-03-08 -
[X154A2AS], Letter from Edward Hibberd Johnson to Uriah Hunt Painter, March 8th, 1878
1878-03-08 -
[X154A2AV], Letter from Thomas Alva Edison to Uriah Hunt Painter, March 12th, 1878
1878-03-12 -
[X154B5AA], Memorandum, James Redpath, July 2nd, 1878
1878-07-02 -
[X322AC], Letter from Thomas Alva Edison to Henry Edmunds, Jr., May 26th, 1878
1878-05-26 -
[X163A], Letter from Thomas Alva Edison to George Frederick Barker, December 28th, 1885
1885-12-28