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发明名称
摘要
申请公布号
CH598640(B5)
申请公布日期
1978.05.12
申请号
CH19750012722
申请日期
1975.10.01
申请人
PIQUEREZ, ERVIN, SA
发明人
PIERRE-MICHEL PIQUEREZ
分类号
G04B37/00;G04B37/14;G04B45/00;(IPC1-7):G04B37/00
主分类号
G04B37/00
代理机构
代理人
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