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发明名称
Progressing cavity pump construction
摘要
申请公布号
US2924180(A)
申请公布日期
1960.02.09
申请号
US19580725119
申请日期
1958.03.31
申请人
ROBBINS & MYERS, INC.
发明人
BOURKE JOHN DAVID;CONRAD HARRY LOUIS
分类号
F04C2/107
主分类号
F04C2/107
代理机构
代理人
主权项
地址
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