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发明名称
摘要
申请公布号
JPS5413916(Y2)
申请公布日期
1979.06.11
申请号
JP19750097336U
申请日期
1975.07.11
申请人
发明人
分类号
E01F9/00;E01F9/015;E01F9/03;E01F9/04;(IPC1-7):E01F9/04
主分类号
E01F9/00
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