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发明名称
Balancing and leakage device for centrifugal pumps
摘要
申请公布号
US2221225(A)
申请公布日期
1940.11.12
申请号
US19380202500
申请日期
1938.04.16
申请人
PACIFIC PUMP WORKS
发明人
WEIS ARTHUR R.;BIGELOW GEORGE E.
分类号
F04D29/04;F04D29/12
主分类号
F04D29/04
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代理人
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