Filter bag
United States Patent 3203551
US Patent References:
Bag fastener
- - 1743509

Waterproof cigarette pouch
- - 2093345

Bag structure
- - 2274934

Floor cushions for airplane use and the like
- - 2976914

Slide fastener manufacture
- - 3089231


Inventors:
Loan Jr., Morton Van
Publication Date:
08/31/1965
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Assignee:
MET CHEM INC
Primary Class:
210/486
Other Classes:
55/369, 383/91, 428/100, 55/381, 383/89
International Classes:
B01D29/27; B01D29/13