MIT Institute Archives & Special Collections

Historical Patent Records from the
Blatchford, Seward & Griswold Collection

Testimony of June 31, 1860, by James McCall on behalf of the sewing machine patent of Elias Howe.
The patent ownership was defended by the firm of Blatchford, Seward & Griswold.

Transcript of testimony | Drawing of sewing machine

Testimony of James McCall


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