[N020039], Technical Note, Charles Batchelor, Thomas Alva Edison, May 20th, 1879
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Title
[N020039], Technical Note, Charles Batchelor, Thomas Alva Edison, May 20th, 1879
Editor's Notes
telephone experiments, liquid telephone; Exp. 2 is motograph engine ie capillary motor; No. 3 telephone battery arrangement; Ex 4 is circuit arrangement
Date
1879-05-20
Type
Subject
Folder/Volume ID
N020-F
Microfilm ID
30:989
Document ID
N020039
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University