[NV12134], Technical Note, James Adams, Thomas Alva Edison, August 30th, 1877
https://edisondigital.rutgers.edu/document/NV12134
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Title
[NV12134], Technical Note, James Adams, Thomas Alva Edison, August 30th, 1877
Editor's Notes
Improvement in Bell telephone using diaphragm polarized by other end of permanent magnet [see fr. 43]
Author
Date
1877-08-30
Type
Subject
Folder/Volume ID
NV12-F
Microfilm ID
4:64
Document ID
NV12134
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University