[PT032AAO], Patent Application, Thomas Alva Edison, December 20th, 1887

https://edisondigital.rutgers.edu/document/PT032AAO

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Title

[PT032AAO], Patent Application, Thomas Alva Edison, December 20th, 1887

Date

1887-12-20

Folder/Volume ID

PT032AAO-F

Microfilm ID

114:212

Document ID

PT032AAO

Publisher

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