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发明名称
摘要
申请公布号
JPH0473020(U)
申请公布日期
1992.06.26
申请号
JP19900115331U
申请日期
1990.10.31
申请人
发明人
分类号
E02B3/06;E02D5/04;(IPC1-7):E02B3/06
主分类号
E02B3/06
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