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发明名称
摘要
申请公布号
JPH053560(Y2)
申请公布日期
1993.01.28
申请号
JP19870068473U
申请日期
1987.05.08
申请人
发明人
分类号
E02D31/02;E04B1/64;(IPC1-7):E02D31/02
主分类号
E02D31/02
代理机构
代理人
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