US PATENT SUBCLASS 112 / 460
.~.~.~.~ Including detachable cam

Current as of: June, 1999
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112 /   HD   SEWING

154  DF  STITCH FORMING {17}
157  DF  .~ Zigzag {3}
443  DF  .~.~ Vibrating needle {9}
459  DF  .~.~.~ Having cam actuation of needle or material feed {4}
460.~.~.~.~ Including detachable cam

DEFINITION

Classification: 112/460

Including detachable cam:

(under subclass 459) Device including structure to facilitate the physical removal of the first element (cam) from the device by a human attendant.

(1) Note. Cam detaching devices are included in this subclass.