Window bag for liquids

Flexible bags – Wall details – Transparent portion or window

Patent

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Details

383113, B65D 3304

Patent

active

045091978

ABSTRACT:
A novel heat-sealed and heat-sterilizable construction with an opaque member readily peelable to provide a view of the contents of the bag.

REFERENCES:
patent: 1814967 (1931-07-01), Royal
patent: 2750096 (1956-06-01), Misch
patent: 2752085 (1956-06-01), Bryce
patent: 3386645 (1968-06-01), Powell
patent: 3387640 (1968-06-01), Butler
patent: 3759379 (1973-09-01), Wrede
patent: 3938659 (1976-02-01), Wardwell
patent: 3967728 (1976-07-01), Gordon et al.
patent: 4267960 (1981-05-01), Lind et al.

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