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发明名称
摘要
申请公布号
JPS5021895(B1)
申请公布日期
1975.07.26
申请号
JP19690075186
申请日期
1969.09.20
申请人
发明人
分类号
A63B53/04;A63B53/00;A63B53/06;(IPC1-7):63B53/04
主分类号
A63B53/04
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代理人
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