[N310143], Technical Note, Thomas Alva Edison, February 13th, 1886
https://edisondigital.rutgers.edu/document/N310143
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Title
[N310143], Technical Note, Thomas Alva Edison, February 13th, 1886
Editor's Notes
notes and drawing of Tri-phonoplex"
Author
Date
1886-02-13
Type
Folder/Volume ID
N310-F
Microfilm ID
42:312
Document ID
N310143
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University