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  Partner: UNT Libraries Government Documents Department
 County: Calhoun County, TX
 Decade: 1850-1859
 Month: November
 Collection: Texas Patents
Improvement in Sewing-Machines.

Improvement in Sewing-Machines.

Date: November 15, 1859
Creator: Singer, E. C.
Description: Patent for improvement in sewing-machines by using two cams, one to operate the needle-arm and another to operate the feed and shuttle movements, illustration is included.
Contributing Partner: UNT Libraries Government Documents Department