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发明名称
摘要
申请公布号
JPS5444803(Y2)
申请公布日期
1979.12.22
申请号
JP19740155975U
申请日期
1974.12.19
申请人
发明人
分类号
F04B39/12;F04B39/14;F16L41/02;(IPC1-7):F04B39/12
主分类号
F04B39/12
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代理人
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