[MBP018], Patent Issued, Thomas Alva Edison, September 20th, 1879

Item

Abstract

British Pat 3794 (1879). Telephone annunciators.

Date

1879-09-20

Decade

1870-1879

Subject

Identifier

MBP018

Folder Set

MBP

Title

[MBP018], Patent Issued, Thomas Alva Edison, September 20th, 1879

Microfilm ID

92:129

Publisher

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