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发明名称
摘要
申请公布号
JPS5073228(U)
申请公布日期
1975.06.27
申请号
JP19730127335U
申请日期
1973.11.02
申请人
发明人
分类号
E02B15/06;E02B15/04;(IPC1-7):E02B15/04
主分类号
E02B15/06
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代理人
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