[PT005C1], Patent Specification, Thomas Alva Edison, April 22nd, 1873

Item

Author

Edison, Thomas Alva

Mentions

Munn & Co

Date

1873-04-22

Decade

1870-1879

Type

Patent Specification

Subject

Multiple telegraphy (duplex, quadruplex)

Identifier

PT005C1

Folder Set

PT005C

Title

[PT005C1], Patent Specification, Thomas Alva Edison, April 22nd, 1873

Microfilm ID

8:607

Rights

Thomas Edison National Historical Park

Publisher

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

Item sets

Abandoned Applications, Case C