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发明名称
摘要
申请公布号
JPS6419632(U)
申请公布日期
1989.01.31
申请号
JP19870114577U
申请日期
1987.07.28
申请人
发明人
分类号
E02D7/12;(IPC1-7):E02D7/12
主分类号
E02D7/12
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代理人
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地址
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