US PATENT SUBCLASS 112 / 282
.~ Waste extraction

Current as of: June, 1999
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112 /   HD   SEWING

270  DF  ELEMENTS {21}
282.~ Waste extraction

DEFINITION

Classification: 112/282

Waste extraction:

(under subclass 270) Devices for removing waste material, such as thread pieces, from any general or selected area of the sewing operation.