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摘要
申请公布号
JPH0540099(Y2)
申请公布日期
1993.10.12
申请号
JP19890019436U
申请日期
1989.02.21
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发明人
分类号
E01H5/10;(IPC1-7):E01H5/10
主分类号
E01H5/10
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