[MBN002049], Technical Note, Charles Batchelor, November 17th, 1877
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Title
[MBN002049], Technical Note, Charles Batchelor, November 17th, 1877
Editor's Notes
made as suggested by Batch a telephone like No. 66 in previous entry but circular to reduce strain on side of diaphragm; draws and describes it
Author
Mentioned
Date
1877-11-17
Type
Subject
Folder/Volume ID
MBN002-F
Microfilm ID
90:681
Document ID
MBN002049
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University