[NS7804A], Technical Note, John Kruesi, June 21st, 1878
https://edisondigital.rutgers.edu/document/NS7804A
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Title
[NS7804A], Technical Note, John Kruesi, June 21st, 1878
Editor's Notes
Chemophone -- emg telephone design
Author
Date
1878-06-21
Type
Subject
Folder/Volume ID
NS7804-F
Microfilm ID
7:799
Document ID
NS7804A
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University