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发明名称
Improvements relating to pumping systems
摘要
申请公布号
GB351191(A)
申请公布日期
1931.06.25
申请号
GB19300015033
申请日期
1930.05.15
申请人
RALPH BIDWELL CARTER, JUNIOR
发明人
分类号
F04D9/00
主分类号
F04D9/00
代理机构
代理人
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