Items

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Items

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  [E1518DGN], Letter from Thomas Alva Edison to American Oil and Supply Co, William F Hoffman, April 30th, 1915

  1915-04-30
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  [E1518HCQ], Letter from Thomas Alva Edison to William F Hoffman, American Oil and Supply Co, August 1915

  1915-08-00
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  [E1518JAS], Letter from Thomas J Parker to William F Hoffman, October 7th, 1915

  1915-10-07
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  [E1616HAI], Letter from Thomas Alva Edison to American Oil and Supply Co, William F Hoffman, August 3rd, 1916

  1916-08-03
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  [E1616IAT], Letter from West Orange Laboratory to William F Hoffman, September 14th, 1916

  1916-09-14
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  [E1727AB], Letter from Thomas Alva Edison to William F Hoffman, January 12th, 1917

  1917-01-12
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  [E1818BD], Letter from Thomas Alva Edison to William F Hoffman, November 15th, 1918

  1918-11-15
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  [E1971AE], Letter from William Henry Meadowcroft to William F Hoffman, January 27th, 1919

  1919-01-27
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  [HM55BL], Letter from General Chemical Co to William F Hoffman, American Oil and Supply Co, December 20th, 1915

  1915-12-20
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  [LB110267], Letter from Thomas Alva Edison to William F Hoffman, American Oil and Supply Co, February 12th, 1916

  1916-02-12