发明名称 PROCESS FOR THE PRODUCTION OF DRAUGHTSMAN'S TEMPLATES
摘要 A process for the production of lettering or symbol templates by production of symbol cut-outs in a template sheet consisting of thermoplastic plastic, characterized by forcing the cut-out portions of the symbols in a shaping or forging step, and subsequently cutting off the protruding forced-out portions.
申请公布号 GB1554938(A) 申请公布日期 1979.10.31
申请号 GB19760028749 申请日期 1976.07.09
申请人 ROTRING-WERKE RIEPE KG 发明人
分类号 B43L13/20;(IPC1-7):29C17/10 主分类号 B43L13/20
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