US PATENT SUBCLASS 383 / 60
.~.~ Annular gasket

Current as of: June, 1999
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383 /   HD   FLEXIBLE BAGS

42  DF  WITH CLOSURE {16}
59  DF  .~ Including auxiliary means for forming leakproof closure seal {1}
60.~.~ Annular gasket

DEFINITION

Classification: 383/60

Annular gasket:

(under subclass 59) Subject matter wherein the auxiliary means is a distinct sealing ring interposed between the closure and the bag.