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摘要
申请公布号
JP2533976(Y2)
申请公布日期
1997.04.30
申请号
JP19910009464U
申请日期
1991.01.30
申请人
发明人
分类号
E02F9/08;E04B1/68;E04B1/684;(IPC1-7):E02F9/08
主分类号
E02F9/08
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