[NS7802J], Technical Note, Thomas Alva Edison, June 29th, 1878

Item

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Abstract

deaf aerophone and microphone

Date

1878-06-29

Decade

1870-1879

Identifier

NS7802J

Folder Set

NS7802

Title

[NS7802J], Technical Note, Thomas Alva Edison, June 29th, 1878

Microfilm ID

7:767

Publisher

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

Timestamp

June 29, 1878