[N034149], Technical Note, Thomas Alva Edison, June 16th, 1879
https://edisondigital.rutgers.edu/document/N034149
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Title
[N034149], Technical Note, Thomas Alva Edison, June 16th, 1879
Editor's Notes
crank perhaps for emg telephone
Author
Date
1879-06-16
Type
Folder/Volume ID
N034-F
Microfilm ID
32:212
Document ID
N034149
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University