US PATENT SUBCLASS 112 / 199
.~.~ Oscillating or reciprocating looper

Current as of: June, 1999
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112 /   HD   SEWING

154  DF  STITCH FORMING {17}
197  DF  .~ Chain or double chain {5}
199.~.~ Oscillating or reciprocating looper

DEFINITION

Classification: 112/199

The looper oscillates back and forth about a central axis or in a given path.