[SM044068a], Clipping, Telegraphic Journal, July 15th, 1879
https://edisondigital.rutgers.edu/document/SM044068a
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Title
[SM044068a], Clipping, Telegraphic Journal, July 15th, 1879
Bibliographic Citation
"Theiler's Patent Mechanical Duplex (for Land-Lines)", Telegraphic Journal, July 15th, 1879
Editor's Notes
In what respects the new "bridge" principle varies from other duplex systems.
Author
Date
1879-07-15
Type
Folder/Volume ID
SM044-F
Microfilm ID
26:138
Document ID
SM044068a
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University