US PATENT SUBCLASS 112 / 240
.~.~ Detachable connections

Current as of: June, 1999
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112 /   HD   SEWING

270  DF  ELEMENTS {21}
235  DF  .~ Presser devices {3}
240.~.~ Detachable connections

DEFINITION

Classification: 112/240

Securing presser-feet or other attachments to presser-bars.