US PATENT SUBCLASS 112 / 217.3
.~ With power control or clutch

Current as of: June, 1999
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112 /   HD   SEWING

217.1  DF  WITH TABLES OR STANDS {2}
217.3.~ With power control or clutch {1}
217.4  DF  .~.~> Conversion of foot-treadle driven machine

DEFINITION

Classification: 112/217.3

(under subclass 217.1) Sewing machine stands including mechanisms to aid in the drive or control of an electric or mechanical motor connected with the sewing machine.