US PATENT SUBCLASS 112 / 74
.~.~.~ Spreading

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}
74.~.~.~ Spreading

DEFINITION

Classification: 112/74

Buttonhole-clamps and operating mechanism adapted to spread the buttonhole before stitching.