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发明名称
Pump seal
摘要
申请公布号
US1744971(A)
申请公布日期
1930.01.28
申请号
US19290365617
申请日期
1929.05.24
申请人
INGERSOLL-RAND COMPANY
发明人
KIRGAN JOHN
分类号
F01B25/00
主分类号
F01B25/00
代理机构
代理人
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