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发明名称
摘要
申请公布号
JPS5210802(Y2)
申请公布日期
1977.03.09
申请号
JP19730001940U
申请日期
1972.12.30
申请人
发明人
分类号
E02F5/14;E02F3/08;E02F5/06;(IPC1-7):E02F3/08
主分类号
E02F5/14
代理机构
代理人
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