[PT5137], Patent Application, Thomas Alva Edison, April 28th, 1925

Item

Author

Edison, Thomas Alva

Date

1925-04-28

Decade

1920-1929

Type

Patent Application

Subject

Disc phonograph

Identifier

PT5137

Folder Set

PT5137

Title

[PT5137], Patent Application, Thomas Alva Edison, April 28th, 1925

Microfilm ID

247:683

Rights

Thomas Edison National Historical Park

Publisher

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

Item sets

Mounting for Diaphragms of Sound Boxes (1925)