[NS7704ZBT], Technical Note, Charles Batchelor, Thomas Alva Edison, July 7th, 1877
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Title
[NS7704ZBT], Technical Note, Charles Batchelor, Thomas Alva Edison, July 7th, 1877
Editor's Notes
quad & sexty, 2pp.: compensation for mag. problems; cross of tubes tongue for pol. relay (use as illustration? -- see Case 142)
Date
1877-07-07
Type
Folder/Volume ID
NS7704-F
Microfilm ID
7:656
Document ID
NS7704ZBT
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University