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发明名称
摘要
申请公布号
JP2781642(B2)
申请公布日期
1998.07.30
申请号
JP19900133155
申请日期
1990.05.23
申请人
发明人
分类号
E02D5/74;E02D27/01;E02D29/00;(IPC1-7):E02D29/00
主分类号
E02D5/74
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