[NS7704ZBL], Technical Note, Charles Batchelor, Thomas Alva Edison, June 12th, 1877
https://edisondigital.rutgers.edu/document/NS7704ZBL
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Title
[NS7704ZBL], Technical Note, Charles Batchelor, Thomas Alva Edison, June 12th, 1877
Editor's Notes
sexty. 2pp.: with tuning fork; "this is the relay that dont open in a reversal" dry paper cond. again; partial 3 level stuff
Date
1877-06-12
Type
Folder/Volume ID
NS7704-F
Microfilm ID
7:640
Document ID
NS7704ZBL
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University