[D7903ZDP], Letter from Thomas Alva Edison to Hamilton McKown Twombly, May 6th, 1879
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Title
[D7903ZDP], Letter from Thomas Alva Edison to Hamilton McKown Twombly, May 6th, 1879
Editor's Notes
Brooks patent may not hold; anticipated by 1861 publication. "At least broad claim cannot be taken on liquid insulator."
Author
Recipient
Mentioned
Date
1879-05-06
Type
Folder/Volume ID
D7903-F
Microfilm ID
49:224
Document ID
D7903ZDP
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University