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发明名称
摘要
申请公布号	JPH0516251(Y2)	申请公布日期	1993.04.28
申请号	JP19870022812U	申请日期	1987.02.20
申请人		发明人
分类号	E01F7/02;(IPC1-7):E01F7/02	主分类号	E01F7/02
代理机构		代理人
主权项
地址

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