发明名称 Expandable package
摘要 A non-metallic, expandable food package for use in a microwave oven is disclosed. The package comprises a leak-proof box-like base portion having an integral flange to which a cover is securely attached. The flange portion is then foldably closed to provide a package having a small storage volume.
申请公布号 US4036423(A) 申请公布日期 1977.07.19
申请号 US19760689494 申请日期 1976.05.24
申请人 INTERNATIONAL PAPER COMPANY 发明人 GORDON, ROBERT L.
分类号 B65D77/20;B65D81/34;(IPC1-7):B65B43/02 主分类号 B65D77/20
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