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发明名称
Impeller for rotary pumps
摘要
申请公布号
US2466440(A)
申请公布日期
1949.04.05
申请号
US19480041262
申请日期
1948.07.29
申请人
CARL KIEKHAEFER ELMER
发明人
KIEKHAEFER ELMER CARL
分类号
F03C2/30;F04C2/40;F04C2/44;F04C5/00
主分类号
F03C2/30
代理机构
代理人
主权项
地址
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