US PATENT SUBCLASS 292 / 287
.~ Seal-rupturing devices

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

281  DF  HASPS {4}
287.~ Seal-rupturing devices

DEFINITION

Classification: 292/287

(under subclass 281) Devices with or without catches and having seals adapted to be ruptured by the operation of the catches or hasps.