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发明名称
摘要
申请公布号
JPH0730721(Y2)
申请公布日期
1995.07.19
申请号
JP19880048952U
申请日期
1988.04.12
申请人
发明人
分类号
E01C5/06;E01C5/22;E01C15/00;(IPC1-7):E01C5/22
主分类号
E01C5/06
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代理人
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