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发明名称
摘要
申请公布号
FR2298131(B1)
申请公布日期
1979.01.19
申请号
FR19750039105
申请日期
1975.12.19
申请人
PORTESCAP
发明人
分类号
G04D7/00;G04D7/12;(IPC1-7):G04D7/08
主分类号
G04D7/00
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