[NE1695023], Technical Note, Thomas Alva Edison, Charles Batchelor, September 12th, 1876
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Title
[NE1695023], Technical Note, Thomas Alva Edison, Charles Batchelor, September 12th, 1876
Editor's Notes
Magnetic puncher tuning fork design; also multi-lever EMG designs Note that "Wurth starts today on making a complete magnetic puncher"
Date
1876-09-12
Type
Subject
Folder/Volume ID
NE1695-F
Microfilm ID
3:363
Document ID
NE1695023
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University