[N016057A], Patent Caveat, Thomas Alva Edison, February 26th, 1879
https://edisondigital.rutgers.edu/document/N016057A
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Title
[N016057A], Patent Caveat, Thomas Alva Edison, February 26th, 1879
Editor's Notes
draft specification for EMG telephone, signature is 3/5/79 fr. 643
Author
Date
1879-02-26
Type
Subject
Folder/Volume ID
N016-F
Microfilm ID
30:615
Document ID
N016057A
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University