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发明名称
摘要
申请公布号
JPS6215340(Y2)
申请公布日期
1987.04.18
申请号
JP19810096144U
申请日期
1981.06.30
申请人
发明人
分类号
E03B9/12;(IPC1-7):E03B9/12
主分类号
E03B9/12
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代理人
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