Letter from John Pierrepont Constable to Zachariah Power Halpin, January 18th, 1916

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Author(s)

Constable, John Pierrepont
Recipient(s)
Halpin, Zachariah Power
Others Mentioned
Edison, Thomas Alva

Subject(s)

Phonograph
Labor
Testing and quality control

Dated

1916-01-18 (1916)

Associated Images

Identifier

E1664AAW (legacy)

Rights

Thomas Edison National Historical Park

Publisher

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

Citation

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