[N011082], Technical Note, Francis Robbins Upton, February 20th, 1879
https://edisondigital.rutgers.edu/document/N011082
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Title
[N011082], Technical Note, Francis Robbins Upton, February 20th, 1879
Editor's Notes
split gramme ring for jablochkoff and field magnets--there is another note about this same date reel 29; Siemens winding, attempts at non-commutator
Author
Date
1879-02-20
Type
Subject
Folder/Volume ID
N011-F
Microfilm ID
30:26
Document ID
N011082
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University