US PATENT SUBCLASS 112 / 324
.~.~ Feed dog structure

Current as of: June, 1999
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112 /   HD   SEWING

154  DF  STITCH FORMING {17}
303  DF  .~ Feeding work material {13}
324.~.~ Feed dog structure

DEFINITION

Classification: 112/324

Feed dog structure:

(under subclass 303) Device drawn to the structure of the feed dog or work engaging element.