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发明名称
摘要
申请公布号
JPS6345818(U)
申请公布日期
1988.03.28
申请号
JP19860138344U
申请日期
1986.09.09
申请人
发明人
分类号
E01H5/04;E01H5/09;E02F9/24;(IPC1-7):E01H5/04
主分类号
E01H5/04
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代理人
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