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发明名称
摘要
申请公布号	DE2023649(A1)	申请公布日期	1971.11.25
申请号	DE19702023649	申请日期	1970.05.14
申请人		发明人
分类号	G02C5/22	主分类号	G02C5/22
代理机构		代理人
主权项
地址

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