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发明名称
摘要
申请公布号	JPS5847048(Y2)	申请公布日期	1983.10.27
申请号	JP19810049912U	申请日期	1981.04.06
申请人		发明人
分类号	E01D1/00;E01D18/00;E01D19/10;E04F11/18;(IPC1-7):E01D19/10	主分类号	E01D1/00
代理机构		代理人
主权项
地址

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