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发明名称
摘要
申请公布号
JPH04126933(U)
申请公布日期
1992.11.19
申请号
JP19910040249U
申请日期
1991.04.30
申请人
发明人
分类号
E02B9/04;E02B1/00;E02B5/08;(IPC1-7):E02B9/04
主分类号
E02B9/04
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代理人
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