发明名称 DON FOR INPRESSNING AV ETT FILMAVSNITT I EN DIARAM
摘要 A frame for a transparency is made in one piece with oppositely directed slots on opposite sides of its window to allow a film section to be snapped into the slots and retained thereby cooperant with a tool for snapping the transparency into position in the frame.
申请公布号 SE418652(B) 申请公布日期 1981.06.15
申请号 SE19750011369 申请日期 1975.10.10
申请人 * HAMA HAMAPHOT KG HANKE & THOMAS 发明人 R * HANKE
分类号 G03B21/64;G03D15/10;(IPC1-7):03B21/64;03D15/10 主分类号 G03B21/64
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