Items
Relation is exactly
University of Pennsylvania
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[D0510AAW], Letter from Joseph W Harris to Electrical World, September 11th, 1905
1905-09-11 -
[D0933AAP], Letter from Wharton Barker to Thomas Alva Edison, October 15th, 1909
1909-10-15 -
[D8849ACR], Letter from George Frederick Barker to Thomas Alva Edison, November 21st, 1888
1888-11-21 -
[D8849ACY], Letter from George Frederick Barker to Thomas Alva Edison, December 7th, 1888
1888-12-07 -
[D8849ADA], Letter from George Edward Gouraud to Thomas Alva Edison, December 13th, 1888
1888-12-13 -
[D8955AAG], Letter from George Frederick Barker to Thomas Alva Edison, January 22nd, 1889
1889-01-22 -
[E1108AU], Letter from Henry Marison Byllesby, Byllesby (H.M.) & Co to Thomas Alva Edison, May 9th, 1911
1911-05-09 -
[E1357AE], Letter from Charles Baskerville to Thomas Alva Edison, April 14th, 1913
1913-04-14 -
[E1505AC], Letter from Arthur Edwin Kennelly to Thomas Alva Edison, April 5th, 1915
1915-04-05 -
[LB027215], Letter from Thomas Alva Edison to George Edward Gouraud, November 30th, 1888
1888-11-30 -
[LB027755], Letter from Thomas Alva Edison to George Frederick Barker, January 16th, 1889
1889-01-16 -
[LB027762], Letter from Thomas Alva Edison to George Edward Gouraud, January 16th, 1889
1889-01-16 -
[LB028211], Letter from Thomas Alva Edison to George Frederick Barker, February 14th, 1889
1889-02-14 -
[LB049504], Letter from Thomas Alva Edison to Jesse Seligman, May 27th, 1891
1891-05-27 -
[LB086550], Letter from Thomas Alva Edison to Henry Marison Byllesby, June 3rd, 1911
1911-06-03 -
[MBJ001096], Diary, Charles Batchelor, April 6th, 1878
1878-04-06 -
[ML002AAA], Letter from Henry S Harris to Muckers (West Orange Laboratory), March 19th, 1905
1905-03-19 -
[NM003132], Letter from George Frederick Barker to Thomas Alva Edison, November 3rd, 1874
1874-11-03 -
[SB515X138A1], Interview, Walter Edison Kruesi, November 12th, 1916
1916-11-12 -
[SC18001C], Clipping, Philadelphia Public Ledger, February 12th, 1918
1918-02-12 -
[W100DFA038], Legal Testimony, George Frederick Barker, June 18th, 1885
1885-06-18 -
[X018A3A], Memorandum, Charles Edison, May 1906
1906-05-00 -
[X154A2BN], Letter from Theodore T Wing to Uriah Hunt Painter, July 5th, 1878
1878-07-05 -
[X120BAC], Letter from George Frederick Barker to Henry Draper, December 15th, 1875
1875-12-15 -
[X120BAE], Letter from George Frederick Barker to Henry Draper, May 21st, 1876
1876-05-21 -
[X120CAA], Letter from Thomas Alva Edison to Frank Julian Sprague, May 26th, 1878
1878-05-26