Technical Note, William Joseph Hammer, May 8th, 1880

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Author(s)

Hammer, William Joseph
Recipient(s)
Others Mentioned

Subject(s)

Telephone
Telegraph
Testing and quality control

Dated

1880-05-08 (1880)

Associated Images

18

Identifier

X098HAB (legacy)

Rights

NMAH Archives Center

Publisher

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

Citation

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