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发明名称
摘要
申请公布号	JPH0247205(U)	申请公布日期	1990.03.30
申请号	JP19880123659U	申请日期	1988.09.21
申请人		发明人
分类号	E01C7/00;E01C7/34;(IPC1-7):E01C7/34	主分类号	E01C7/00
代理机构		代理人
主权项
地址

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