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发明名称
摘要
申请公布号
JPS56154416(U)
申请公布日期
1981.11.18
申请号
JP19800054202U
申请日期
1980.04.21
申请人
发明人
分类号
E01H5/09;(IPC1-7):E01H5/09
主分类号
E01H5/09
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