Valve bag

Details Valve bag Valve bag

1983-04-29

1986-10-21

Bell, Jr., Houston S.

Flexible bags

With closure

Self-closing type

141114, 493213, 493 68, B65D 3024

Patent

active

046189939

ABSTRACT:
A valve bag having an upper bottom with a valve and a lower bottom symmetrically folded in a manner where the bottoms lie atop the central bag portion in a side-by-side and parallel manner is provided.

REFERENCES:
patent: 4036116 (1977-07-01), Tetenborg et al.

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