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经营范围
发明名称
摘要
申请公布号
FR2345753(B1)
申请公布日期
1981.09.04
申请号
FR19760037542
申请日期
1976.12.06
申请人
BONINCHI SA
发明人
分类号
G04B37/10;(IPC1-7):G04B3/04
主分类号
G04B37/10
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