发明名称 SELF-SUPPORTING POLYMER BAG AND METHOD OF MANUFACTURE
摘要 SELF-SUPPORTING POLYMER BAG AND METHOD OF MANUFACTURE A flexible expandable plastic bag self-supporting when open with a rigidifying panel mounted for pivotal movement as the bag is snapped open.
申请公布号 CA2023046(A1) 申请公布日期 1991.11.30
申请号 CA19902023046 申请日期 1990.08.09
申请人 MORAVEK, LAWRENCE R. 发明人 MORAVEK, LAWRENCE R.
分类号 B31B29/74;B65D33/02 主分类号 B31B29/74
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