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发明名称
摘要
申请公布号
JPS6220531(Y2)
申请公布日期
1987.05.25
申请号
JP19830016304U
申请日期
1983.02.07
申请人
发明人
分类号
E03B3/08;E02D23/00;E03B3/10;E03B3/20;(IPC1-7):E03B3/20
主分类号
E03B3/08
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