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发明名称
摘要
申请公布号
FR2273856(B1)
申请公布日期
1977.07.08
申请号
FR19750017464
申请日期
1975.06.04
申请人
OTTO ET COMP GMBH C
发明人
分类号
C10B21/02;C10B5/02;C10B21/22;(IPC1-7):10B5/00
主分类号
C10B21/02
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