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发明名称
摘要
申请公布号	FR1590805(A)	申请公布日期	1970.04.20
申请号	FRD1590805	申请日期	1968.11.05
申请人		发明人
分类号	G03B17/52	主分类号	G03B17/52
代理机构		代理人
主权项
地址

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