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发明名称
Self-priming pump construction
摘要
申请公布号
US1948366(A)
申请公布日期
1934.02.20
申请号
US19300455238
申请日期
1930.05.24
申请人
BARZEN RICHARD G
发明人
BARZEN RICHARD G.
分类号
F04D9/02
主分类号
F04D9/02
代理机构
代理人
主权项
地址
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