Mouth closure means for bags comprising heat sealable material
United States Patent 3001689
US Patent References:
Bag for infusing material
- - 2364903
Plastic container with rupturable sealed end
- - 2648463
Sealing envelopes
- - 2819010
Bag for infusing material
- - 2364903
Plastic container with rupturable sealed end
- - 2648463
Sealing envelopes
- - 2819010
Inventors:
Burton, Drury R.
Publication Date:
09/26/1961
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Export Citation:
Assignee:
DOW CHEMICAL CO
Primary Class:
Other Classes:
383/84, 383/94, 383/93
International Classes:
B65D33/18
Foreign References:
| GB552804A |