[NE1694037], Technical Note, Edward Hibberd Johnson, September 4th, 1876
https://edisondigital.rutgers.edu/document/NE1694037
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Title
[NE1694037], Technical Note, Edward Hibberd Johnson, September 4th, 1876
Editor's Notes
to top p. 40: Motograph: chalk drum w/traveling pen fails to work; max friction is key, not pressure; change shape and orientation of point; caustic soda good -- annotate with 6 Sept notes on paper on bottom p. 40
Author
Date
1876-09-04
Type
Subject
Folder/Volume ID
NE1694-F
Microfilm ID
3:297
Document ID
NE1694037
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University