[MBN002049], Technical Note, Charles Batchelor, November 17th, 1877

https://edisondigital.rutgers.edu/document/MBN002049

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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

Date

1877-11-17

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
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