[D7929ZAD], Letter from U.S. Patent Office. Commissioner to Thomas Alva Edison, March 8th, 1879

Item

Abstract

Nicholson interference (duplex) dissolved.

Date

1879-03-08

Decade

1870-1879

Type

Identifier

D7929ZAD

Folder Set

D7929

Title

[D7929ZAD], Letter from U.S. Patent Office. Commissioner to Thomas Alva Edison, March 8th, 1879

Microfilm ID

51:426

Publisher

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

Item sets