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经营范围
发明名称
Labyrinth gas-seal
摘要
申请公布号
EP0623768(B1)
申请公布日期
1998.06.24
申请号
EP19940302923
申请日期
1994.04.25
申请人
DRESSER-RAND COMPANY
发明人
MARSHALL, DALE FRED
分类号
F16J15/447;F04D29/12;F16J15/44;F16J15/48;(IPC1-7):F16J15/44
主分类号
F16J15/447
代理机构
代理人
主权项
地址
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