Items

• [E1421DP1], Publication, Thomas Alva Edison, September 1914
  1914-09-00
• [E1616KBT], Letter from Thomas Alva Edison to William Walter Dinwiddie, November 1916
  1916-11-00
• [E1616LBJ], Letter from Ludwig Fredrick Ott to Thomas Alva Edison, December 1916
  1916-12-00
• [E1651AA], Letter from Delos Holden to William Henry Meadowcroft, February 16th, 1916
  1916-02-16
• [NB241AAAE], Technical Note, Ludwig Fredrick Ott, July 1st, 1918
  1918-07-01