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发明名称
DEVICE FOR PREVENTING SHAFT SEALING PORTION FROM INTRUSION OF COOLING WATER
摘要
申请公布号
JPS549350(A)
申请公布日期
1979.01.24
申请号
JP19770074378
申请日期
1977.06.24
申请人
HITACHI LTD
发明人
OSADA KATSUHISA
分类号
F16J15/34
主分类号
F16J15/34
代理机构
代理人
主权项
地址
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