[D8505D], Letter from John Clark to Thomas Alva Edison, February 23rd, 1885
https://edisondigital.rutgers.edu/document/D8505D
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Title
[D8505D], Letter from John Clark to Thomas Alva Edison, February 23rd, 1885
Editor's Notes
John Clark writes TAE to try and get TAE's endorsement on a Telphone cable. Clark wants to increase the "telephone proportionally, and not merely in length by using a one or two inch iron rod, with a diaphragm of 10 to 20 feet diameter.
Author
Recipient
Date
1885-02-23
Type
Subject
Folder/Volume ID
D8505-F
Microfilm ID
77:260
Document ID
D8505D
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University