US PATENT SUBCLASS 383 / 59
.~ Including auxiliary means for forming leakproof closure seal

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

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

DEFINITION

Classification: 383/59

Including auxiliary means for forming leakproof closure seal:

(under subclass 42) Subject matter wherein the bag includes means, in addition to the closure, for preventing the ingress of gas or liquid, or egress of bag contents around the element.