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发明名称
Shaft seal
摘要
申请公布号
US2685463(A)
申请公布日期
1954.08.03
申请号
US19490135237
申请日期
1949.12.27
申请人
JET SHAFT SEALS, INC.
发明人
JR. MELVILLE R. POLLARD,
分类号
F04D29/12;F16J15/34
主分类号
F04D29/12
代理机构
代理人
主权项
地址
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