[D7937ZDT], Letter from Sigmund Bergmann to Charles Batchelor, November 21st, 1879

Item

Abstract

Sends relay telephone "with slight alteration on the relay, as I showed Mr Kreusi--as I was afraid they would stick to the magnets, I put a little weight on the pin." Let him know if the whole instrument is satisfactory.

Recipient

Mentions

Date

1879-11-21

Decade

1870-1879

Type

Subject

Identifier

D7937ZDT

Folder Set

D7937

Title

[D7937ZDT], Letter from Sigmund Bergmann to Charles Batchelor, November 21st, 1879

Microfilm ID

52:141

Publisher

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