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发明名称
摘要
申请公布号
JPS56117070(U)
申请公布日期
1981.09.08
申请号
JP19800015167U
申请日期
1980.02.12
申请人
发明人
分类号
F04B53/16;F04B17/04;(IPC1-7):F04B17/04;F04B21/00
主分类号
F04B53/16
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