Title:
METHOD OF MAKING POLYPROPYLENE BAGS
United States Patent 3544404

Inventors:
Johnson, Frederick W.
Leach, Jack
Publication Date:
12/01/1970
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Assignee:
BURLINGTON INDUSTRIES INC
Primary Class:
156/148
Other Classes:
156/251, 139/389, 493/203, 156/308.400
International Classes:
D03D3/00; D03D1/04
US Patent References:
3360014Textile containers
3360015Containers of textile composition
3439865WOVEN PLASTIC BAGS




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