[NV12156] Technical Note, September 19th, 1877
https://edisondigital.rutgers.edu/document/NV12156
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Title
[NV12156] Technical Note, September 19th, 1877
Editor's Notes
This is a retrospective note drawn on or after 2 Jan 1878 but discusses what TAE did about middle of Sept 1877 one drawing of diaphragm and lever from 19 Sept: for recorder/reproducer claims "tried and used and publicly exhibited about that time" [is there corr about this?] on back "Interference of A Wilford Hall H.H. Cooley Rockport, NY"
Author
Date
1877-09-19
Type
Subject
Folder/Volume ID
NV12-F
Microfilm ID
4:73
Document ID
NV12156
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University