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发明名称
摘要
申请公布号
FR2293726(B1)
申请公布日期
1977.03.25
申请号
FR19740039334
申请日期
1974.12.02
申请人
LARRETGERE OLIVIER
发明人
分类号
G03B35/08;(IPC1-7):G03B35/08
主分类号
G03B35/08
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