,申请号BED707457-传众专利搜索

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发明名称
摘要
申请公布号	BE707457(A)	申请公布日期	1968.04.16
申请号	BED707457	申请日期	1967.12.01
申请人		发明人
分类号	E01D19/06	主分类号	E01D19/06
代理机构		代理人
主权项
地址

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