[D8637J], Patent Issued, Thomas Alva Edison, April 7th, 1886

https://edisondigital.rutgers.edu/document/D8637J

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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."

Date

1886-04-07

Decade

1880-1889

Folder/Volume ID

D8637-F

Microfilm ID

79:1068

Document ID

D8637J

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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