[N045023], Technical Note, Thomas Alva Edison, Charles Batchelor, May 13th, 1879
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Title
[N045023], Technical Note, Thomas Alva Edison, Charles Batchelor, May 13th, 1879
Editor's Notes
telephone connections, switchboard, circuit; some kind of galvanometer; fr. 1065 junction box for EL
Date
1879-05-13
Type
Subject
Folder/Volume ID
N045-F
Microfilm ID
32:1057
Document ID
N045023
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University