,申请号BED718073-传众专利搜索

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发明名称
摘要
申请公布号	BE718073(A)	申请公布日期	1968.12.16
申请号	BED718073	申请日期	1968.07.15
申请人		发明人
分类号	E04C2/40;F16L59/02;F16L59/14	主分类号	E04C2/40
代理机构		代理人
主权项
地址

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