Items

• [PT5048B], Memorandum, Henry Lanahan, February 19th, 1912
  1912-02-19
• [PT5051A], Technical Note, Thomas Alva Edison, April 17th, 1912
  1912-04-17
• [PT5052A], Technical Note, Thomas Alva Edison, April 19th, 1912
  1912-04-19
• [PT5052B], Technical Note, Alfred W Fleming, April 25th, 1912
  1912-04-25
• [PT5053A], Technical Note, Thomas Alva Edison, April 22nd, 1912
  1912-04-22
• [PT5054A], Technical Note, Sam Gerrish Langley, April 24th, 1912
  1912-04-24
• [PT5054C], Technical Note, Sam Gerrish Langley, May 6th, 1912
  1912-05-06
• [PT5057D], Letter from Thomas Alva Edison to Frederick Bachman, June 12th, 1912
  1912-06-12
• [PT5058], Patent Application, Thomas Alva Edison, July 15th, 1912
  1912-07-15
• [PT5058A], Technical Note, Thomas Alva Edison, June 14th, 1912
  1912-06-14
• [PT5059], Patent Application, Thomas Alva Edison, Jr., July 22nd, 1912
  1912-07-22
• [PT5059C], Technical Note, Thomas Alva Edison, Jr., May 23rd, 1912
  1912-05-23
• [PT5059D], Technical Note, Thomas Alva Edison, Jr., May 25th, 1912
  1912-05-25
• [PT5061A], Technical Note, Thomas Alva Edison, June 12th, 1912
  1912-06-12
• [PT5064], Patent Application, Thomas Alva Edison, November 7th, 1912
  1912-11-07
• [PT5065A], Technical Note, Sherwood Troop (Sam) Moore, Thomas Alva Edison, September 2nd, 1912
  1912-09-02
• [PT5066A], Technical Note, Thomas Alva Edison, January 8th, 1913
  1913-01-08
• [PT5066B], Technical Note, Thomas Alva Edison, February 4th, 1913
  1913-02-04
• [PT5067], Patent Application, Thomas Alva Edison, February 28th, 1913
  1913-02-28
• [PT5068], Patent Application, Daniel Higham, March 27th, 1913
  1913-03-27
• [PT5068A], Technical Note, Thomas Alva Edison, Daniel Higham, January 8th, 1913
  1913-01-08
• [PT5069], Patent Application, Thomas Alva Edison, April 10th, 1913
  1913-04-10
• [PT5073A], Legal Testimony, Thomas Alva Edison, June 1913
  1913-06-00
• [PT5074B], Technical Note, Miller Reese Hutchison, November 24th, 1911
  1911-11-24
• [PT5074E], Technical Note, Miller Reese Hutchison, Charles Winfred Norton, April 15th, 1912
  1912-04-15
• [PT5078A], Technical Note, Miller Reese Hutchison, December 10th, 1911
  1911-12-10
• [PT5088A], Technical Note, Newman Henry Holland, April 10th, 1913
  1913-04-10
• [PT5093B], Technical Note, Newman Henry Holland, January 8th, 1916
  1916-01-08
• [PT5095A], Technical Note, Thomas Alva Edison, January 28th, 1916
  1916-01-28