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发明名称
摘要
申请公布号
JPH0421857(Y2)
申请公布日期
1992.05.19
申请号
JP19850046882U
申请日期
1985.04.01
申请人
发明人
分类号
E02B7/26;E02B7/34;E04C2/30;E04C2/40;E06B9/00;(IPC1-7):E02B7/26
主分类号
E02B7/26
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代理人
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