[NV12030] Technical Note, July 20th, 1877
https://edisondigital.rutgers.edu/document/NV12030
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Title
[NV12030] Technical Note, July 20th, 1877
Editor's Notes
Application of the Hish [hiss] tube to Bells telephone [use as ill to fr. 15]; followed by a drawing of the tube
Date
1877-07-20
Type
Subject
Folder/Volume ID
NV12-F
Microfilm ID
4:18
Document ID
NV12030
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University