[PT005E], Patent Application, Thomas Alva Edison, April 23rd, 1873

Item

Author

Edison, Thomas Alva

Date

1873-04-23

Decade

1870-1879

Type

Patent Application

Subject

Multiple telegraphy (duplex, quadruplex)

Identifier

PT005E

Folder Set

PT005E

Title

[PT005E], Patent Application, Thomas Alva Edison, April 23rd, 1873

Microfilm ID

8:657

Rights

Thomas Edison National Historical Park

Publisher

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

Item sets

Abandoned Applications, Case E