US PATENT SUBCLASS 383 / 46
.~.~.~ With closure reinforcing or stiffening means

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

42  DF  WITH CLOSURE {16}
43  DF  .~ Self-closing type {1}
44  DF  .~.~ Responsive to content (e.g., valve) {8}
46.~.~.~ With closure reinforcing or stiffening means

DEFINITION

Classification: 383/46

With closure reinforcing or stiffening means:

(under subclass 44) Subject matter wherein the bag closure includes means for increasing its strength or rigidity.