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发明名称
摘要
申请公布号
JPH0325626(U)
申请公布日期
1991.03.15
申请号
JP19890083599U
申请日期
1989.07.18
申请人
发明人
分类号
E02B17/04;E04G1/20;(IPC1-7):E02B17/04
主分类号
E02B17/04
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