Legal Testimony, U.S. Patent Office. Commissioner, Ellis Spear, June 13th, 1877

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Author(s)

U.S. Patent Office. Commissioner
Spear, Ellis
Recipient(s)
Others Mentioned
Duncan, Samuel Augustus

Subject(s)

Dated

1877-06-13 (1877)

Associated Images

1

Identifier

QCB09129 (legacy)

Rights

Thomas Edison National Historical Park

Publisher

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

Citation

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