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发明名称
摘要
申请公布号	JPS4527042(Y1)	申请公布日期	1970.10.20
申请号	JP19650032941U	申请日期	1965.04.27
申请人		发明人
分类号	(IPC1-7):E21C35/04	主分类号	(IPC1-7):E21C35/04
代理机构		代理人
主权项
地址

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