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发明名称
摘要
申请公布号
JPS625047(Y2)
申请公布日期
1987.02.05
申请号
JP19830061993U
申请日期
1983.04.25
申请人
发明人
分类号
E01C19/48;(IPC1-7):E01C19/48
主分类号
E01C19/48
代理机构
代理人
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地址
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