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发明名称
摘要
申请公布号
JPS52139505(U)
申请公布日期
1977.10.22
申请号
JP19760049173U
申请日期
1976.04.19
申请人
发明人
分类号
F04B17/04;(IPC1-7):F04B17/04
主分类号
F04B17/04
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代理人
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