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发明名称
摘要
申请公布号
JPH0743174(Y2)
申请公布日期
1995.10.04
申请号
JP19890027542U
申请日期
1989.03.10
申请人
发明人
分类号
E02D17/20;E04G21/10;(IPC1-7):E02D17/20
主分类号
E02D17/20
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代理人
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