,申请号JP19730080863-传众专利搜索

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发明名称
摘要
申请公布号	JPS5030701(A)	申请公布日期	1975.03.27
申请号	JP19730080863	申请日期	1973.07.23
申请人		发明人
分类号	E21C45/00;E21C50/02	主分类号	E21C45/00
代理机构		代理人
主权项
地址

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