[D7719ZDR], Letter from Thomas Alva Edison to Thomas B A David, November 28th, 1877

https://edisondigital.rutgers.edu/document/D7719ZDR

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Title

[D7719ZDR], Letter from Thomas Alva Edison to Thomas B A David, November 28th, 1877

Editor's Notes

Don't understand about one of David's men working carbon telephone -- what he means is solid disk of either plumbago or lampblack or gas retort carbon same as I have always used -- believes he has perfectly satisfactory telephone now

Recipient

Date

1877-11-28

Decade

1870-1879

Type

Folder/Volume ID

D7719-F

Microfilm ID

14:1002

Document ID

D7719ZDR

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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