US PATENT SUBCLASS 292 / 156
.~.~ Multiple head

Current as of: June, 1999
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292 /   HD   CLOSURE FASTENERS

2  DF  BOLTS {15}
137  DF  .~ Sliding {9}
156.~.~ Multiple head {1}
157  DF  .~.~.~> Operating means {5}

DEFINITION

Classification: 292/156

(under subclass 137) Devices having a plurality of rigid keeper-engaging portions.