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摘要
申请公布号
JPH0667520(U)
申请公布日期
1994.09.22
申请号
JP19930014268U
申请日期
1993.03.04
申请人
发明人
分类号
E01F13/00;E01F13/04;(IPC1-7):E01F13/00
主分类号
E01F13/00
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