[X128B053], Technical Note, John F Ott, June 8th, 1886
https://edisondigital.rutgers.edu/document/X128B053
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Title
[X128B053], Technical Note, John F Ott, June 8th, 1886
Editor's Notes
drawing "Phonoplex This cuts out coil when receiving also shunts phone while sending"
Author
Date
1886-06-08
Type
Folder/Volume ID
X128B-F
Document ID
X128B053
Rights
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University