Vent for thermoplastic bag
United States Patent 3133691
US Patent References:
Vented package
- - 2361344

Packaging container
- - 2997224


Inventors:
Corbett, Herbert O.
Publication Date:
05/19/1964
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Assignee:
NAT DISTILLERS CHEM CORP
Primary Class:
383/103
International Classes:
B65D33/01