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发明名称
摘要
申请公布号	SU443353(A1)	申请公布日期	1974.09.15
申请号	SU19721851236	申请日期	1972.11.28
申请人		发明人
分类号	G03B1/42;(IPC1-7):G03B1/42	主分类号	G03B1/42
代理机构		代理人
主权项
地址

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