发明名称 |
Process for producing transparency frames |
摘要 |
The invention relates to a process for producing elastically enlargeable transparency frame halves from at least one extruded plastics film which are bonded together by adhesion or ultrasonic welding to form a frame in which the picture window cutouts and the outer contour of the frame are punched out. With the object of simplifying the known processes of this type in such a manner that the frames can be produced at lower cost, the film bed for the transparency is embossed into at least one of two films.
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申请公布号 |
DE3416760(A1) |
申请公布日期 |
1985.11.07 |
申请号 |
DE19843416760 |
申请日期 |
1984.05.07 |
申请人 |
GEIMUPLAST PETER MUNDT GMBH & CO KG |
发明人 |
MUNDT,PETER;NEUHOLD,ARNOLD |
分类号 |
B29C43/02;B29D12/00;G03B21/64;(IPC1-7):B29D12/00 |
主分类号 |
B29C43/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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