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发明名称
摘要
申请公布号
JPH0484410(U)
申请公布日期
1992.07.22
申请号
JP19900128544U
申请日期
1990.11.29
申请人
发明人
分类号
E01C19/08;E01C19/05;(IPC1-7):E01C19/08
主分类号
E01C19/08
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代理人
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