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发明名称
摘要
申请公布号
JPS58120207(U)
申请公布日期
1983.08.16
申请号
JP19820017372U
申请日期
1982.02.10
申请人
发明人
分类号
E01C19/45;E01C19/48;(IPC1-7):E01C19/48
主分类号
E01C19/45
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