Sealed bag and method of producing it
United States Patent 2197490

Inventors:
Norman, Williams S.
Higginbottom, William E.
Publication Date:
04/16/1940
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Assignee:
BENJAMIN C BETNER COMPANY
Primary Class:
383/91
Other Classes:
493/220, 493/214, 383/203, 383/906, 383/89
International Classes:
B65D33/16