US PATENT SUBCLASS 112 / 73
.~.~.~ Vibrating needle

Current as of: June, 1999
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112 /   HD   SEWING

2  DF  SPECIAL MACHINES {38}
65  DF  .~ Buttonhole {5}
70  DF  .~.~ Clamp feeding {7}
73.~.~.~ Vibrating needle

DEFINITION

Classification: 112/73

The needle is shifted laterally in forming the buttonhole-stitch.

(1) Note. For vibrating-needle machines, per se, see this class, subclasses 446+.