[D8637J], Patent Issued, Thomas Alva Edison, April 7th, 1886
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Title
[D8637J], Patent Issued, Thomas Alva Edison, April 7th, 1886
Editor's Notes
Patent specs in French for duplex and qualdruplex telegraphs for a patent of 15 years for some perfections of the telegraph invented by TAE who is represented by D.H. Brandon, "living in Paris."
Author
Mentioned
Date
1886-04-07
Type
Folder/Volume ID
D8637-F
Microfilm ID
79:1068
Document ID
D8637J
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University