[N134023], Technical Note, Thomas Alva Edison, October 25th, 1884
https://edisondigital.rutgers.edu/document/N134023
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Title
[N134023], Technical Note, Thomas Alva Edison, October 25th, 1884
Editor's Notes
Telephone: oil and powdwered carbon under diaphragm.
Author
Date
1884-10-25
Type
Subject
Folder/Volume ID
N134-F
Microfilm ID
38:438
Document ID
N134023
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University