发明名称 Plastic sheet document case
摘要 The document case is made of plastic, as in DT 1536637. The fold opposite the clamped or stitched edge of the case is cut away at the two thickened longitudinal folds in the region of the aperture for insertion of the documents.
申请公布号 DE1934111(A1) 申请公布日期 1971.01.14
申请号 DE19691934111 申请日期 1969.07.04
申请人 LENNARTZ,WALTER 发明人 LENNARTZ,WALTER
分类号 B42F7/02 主分类号 B42F7/02
代理机构 代理人
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