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发明名称
摘要
申请公布号
JPS62143704(U)
申请公布日期
1987.09.10
申请号
JP19860030228U
申请日期
1986.03.03
申请人
发明人
分类号
E01C19/22;(IPC1-7):E01C19/22
主分类号
E01C19/22
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代理人
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地址
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