Items

• [PT014AAI], Letter from Dyer and Seely to U.S. Patent Office. Commissioner, December 31st, 1886
  1886-12-31
• [PT015AAE], Letter from Dyer and Seely to U.S. Patent Office. Commissioner, December 31st, 1886
  1886-12-31
• [W100ACC], Patent Caveat, Thomas Alva Edison, May 29th, 1891
  1891-05-29
• [W100ACD], Patent Caveat, Thomas Alva Edison, June 10th, 1891
  1891-06-10
• [W100ACE], Patent Caveat, Thomas Alva Edison, December 29th, 1891
  1891-12-29