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发明名称
摘要
申请公布号
JPS6216125(U)
申请公布日期
1987.01.30
申请号
JP19850106247U
申请日期
1985.07.10
申请人
发明人
分类号
E02B7/30;E02B7/54;(IPC1-7):E02B7/54
主分类号
E02B7/30
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