US PATENT SUBCLASS 112 / 287
.~.~ With thread disposal by air flow

Current as of: June, 1999
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112 /   HD   SEWING

270  DF  ELEMENTS {21}
285  DF  .~ Thread cutting, severing or breaking {11}
287.~.~ With thread disposal by air flow

DEFINITION

Classification: 112/287

With thread disposal by air flow:

(under subclass 285) Devices having means to provide an air flow, positive and/or negative (suction), the function of such means being to remove or dispose of a piece of cut or waste thread.