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发明名称
摘要
申请公布号
JPH01120545(U)
申请公布日期
1989.08.15
申请号
JP19880014681U
申请日期
1988.02.06
申请人
发明人
分类号
E02D17/20;E02D29/02;(IPC1-7):E02D29/02
主分类号
E02D17/20
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