Inventor · disambiguated record

Zaiqiang Miao

Also filed as: MIAO ZAIQIANG

1 granted patent·0 citations·filing 2018–2018

1Inventor score

Technology areasE21B

Files withUNIV CHINA PETROLEUM EAST CHINA1

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1 record

0129US10801282B2Screw drill bypass valve with large displacement diversion functionUNIV CHINA PETROLEUM EAST CHINA·Filed 2018·Granted Oct 13, 2020·0 cites·2 claims

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