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Priority claimed from US08/064,700external-prioritypatent/US5348752A/en
Priority claimed from US08/098,530external-prioritypatent/US5419096A/en
Priority claimed from US08/154,756external-prioritypatent/US5419097A/en
Application filed by World Class Packaging Systems IncfiledCriticalWorld Class Packaging Systems Inc
Application grantedgrantedCritical
Publication of TW327161BpublicationCriticalpatent/TW327161B/en
A package for facilitating gas exchange, comprising a set of reciprocal moving means for moving a preformed upper membrane to a position that is distant to a performed lower membrane to facilitate a gas exchange at a location of the means; and the reciprocal moving means being reciprocally moved to a second position in a manner such that the upper membrane is closely attached to the membrane.
TW083109009A1993-05-201994-09-29Package for facilitating gas exchange providing apparatus and method for making modified atmosphere packages
TW327161B
(en)