[MBN001072], Technical Note, Charles Batchelor, February 4th, 1878
Item
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Title
[MBN001072], Technical Note, Charles Batchelor, February 4th, 1878
Editor's Notes
telephone with varying resistance battery
Author
Date
1878-02-04
Decade
1870-1879
Type
Subject
Identifier
MBN001072
Folder Set
MBN001-F
Microfilm ID
90:658
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University