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发明名称
摘要
申请公布号
FR2224797(B1)
申请公布日期
1977.10.14
申请号
FR19740011582
申请日期
1974.04.01
申请人
ERHARD JAUCH
发明人
分类号
G04C21/04;G04C21/06;G04C21/12;G04C21/38;(IPC1-7):G04C21/06
主分类号
G04C21/04
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