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发明名称
摘要
申请公布号
JPS55110523(U)
申请公布日期
1980.08.02
申请号
JP19790007997U
申请日期
1979.01.24
申请人
发明人
分类号
E02B7/20;E02B7/40;E02B7/42;(IPC1-7):E02B7/40
主分类号
E02B7/20
代理机构
代理人
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