Items

• [D1024AAD], Letter from Frank David Lewis to Frank Lewis Dyer, May 24th, 1910
  1910-05-24
• [E1120AG], Letter from Frank David Lewis to Frank Lewis Dyer, May 8th, 1911
  1911-05-08
• [E1255AD], Letter from Frank David Lewis to Miller Reese Hutchison, November 11th, 1912
  1912-11-11
• [PT5031M], Letter from Frank David Lewis to Frank Lewis Dyer, October 3rd, 1912
  1912-10-03
• [PT5034C], Letter from Frank David Lewis to Frederick Bachman, 1911
  1911-00-00
• [PT032AFR8], Letter from Frank David Lewis to Delos Holden, July 29th, 1910
  1910-07-29
• [PT032AIN1], Letter from Frank David Lewis to Herbert H Dyke, June 25th, 1908
  1908-06-25
• [PT033] Patent Application, 1909-1912
  1909-1912
• [PT5027B], Technical Note, Frank David Lewis, Thomas Alva Edison, June 11th, 1911
  1911-06-11
• [PT5028E], Technical Note, Frank David Lewis, Frank Lewis Dyer, 1911
  1911-00-00
• [PT5031J], Letter from Frank David Lewis to Frank Lewis Dyer, February 15th, 1912
  1912-02-15
• [PT5041B], Technical Note, Frank David Lewis, December 26th, 1911
  1911-12-26
• [PT5049B], Letter from Frank David Lewis to Daniel Higham, 1912
  1912-00-00
• [PT5055B], Technical Note, Jonas Walter Aylsworth, Edward Lincoln Aiken, Frank David Lewis, October 16th, 1911
  1911-10-16
• [PT5065B], Technical Note, Frank David Lewis, Thomas Alva Edison, Sherwood Troop (Sam) Moore, September 5th, 1912
  1912-09-05
• [PT5073A1], Technical Note, Frank David Lewis, May 9th, 1913
  1913-05-09
• [PT5083], Patent Application, Frank David Lewis, May 28th, 1914
  1914-05-28
• [PT5083C], Technical Note, Frank David Lewis, June 29th, 1914
  1914-06-29
• [PT5083D], Technical Note, Frank David Lewis, April 28th, 1915
  1915-04-28