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发明名称
摘要
申请公布号
JPH0714405(Y2)
申请公布日期
1995.04.10
申请号
JP19890032011U
申请日期
1989.03.20
申请人
发明人
分类号
E01D19/08;E01D101/00;E01D101/40;(IPC1-7):E01D19/08
主分类号
E01D19/08
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代理人
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