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发明名称
摘要
申请公布号	FR2344859(B3)	申请公布日期	1979.10.05
申请号	FR19770003716	申请日期	1977.02.10
申请人	SCHNEIDER ET CO OPTISCHE WERKE J	发明人
分类号	G03B19/18;G02B7/08;G02B7/10;G02B7/28;(IPC1-7):G02B7/10;G03B3/10	主分类号	G03B19/18
代理机构		代理人
主权项
地址

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