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Michael Hui Du, Arthur I Watson, David Rowatt, Chad Bremner, Arunkumar Arumugam, David Garrett, Christopher Featherby, Ramez Guindi: Pump motor protector with redundant shaft seal. Schlumberger Technology Corporation, Michael Stonebrook, August 19, 2014: US08807966 (1 worldwide citation)

An electric submersible pump device having a motor part, a pump part, and a protector part. The protector part includes redundant shaft seal parts.


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