[PT032AHX], Patent Application, Thomas Alva Edison, June 11th, 1907

https://edisondigital.rutgers.edu/document/PT032AHX

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Title

[PT032AHX], Patent Application, Thomas Alva Edison, June 11th, 1907

Author

Edison, Thomas Alva

Mentioned

Dyer, Frank Lewis
Smith, Dyer

Date

1907-06-11

Type

Patent Application

Subject

Microphone and other acoustic devices

Folder/Volume ID

PT032AHX-F

Microfilm ID

185:349

Document ID

PT032AHX

URL

https://edisondigital.rutgers.edu/document/PT032AHX

Rights

Thomas Edison National Historical Park

Publisher

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

Has Version

Archive.org Viewer, Microfilm Series Reel 185

Item sets

[PT032AHX-F] Sprocket-chain Drive (1907)
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