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发明名称
摘要
申请公布号
JPS6315362(Y2)
申请公布日期
1988.04.28
申请号
JP19820159652U
申请日期
1982.10.23
申请人
发明人
分类号
E01D1/00;E01C9/08;E01D15/133;E01D101/40;E02D17/04;(IPC1-7):E01C9/08
主分类号
E01D1/00
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代理人
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地址
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