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发明名称
摘要
申请公布号
JPS5647674(U)
申请公布日期
1981.04.27
申请号
JP19790129537U
申请日期
1979.09.19
申请人
发明人
分类号
A63B21/02;A63B23/00;(IPC1-7):A63B23/00
主分类号
A63B21/02
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