Electric reversing tower-type pumping unit (Chinese)
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2024
- Patent / Electronic Resource
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Title:Electric reversing tower-type pumping unit
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Additional title:一种电气换向塔式抽油机
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Patent number:CN117365402
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Patent applicant:
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Patent family:
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Contributors:ZHANG WEI ( author )
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Publisher:
- New search for: Europäisches Patentamt
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Publication date:2024-01-09
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Type of media:Patent
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Type of material:Electronic Resource
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Language:Chinese
- New search for: E21B
- Further information on International Patent Classification
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Classification:
IPC: E21B EARTH OR ROCK DRILLING, Erd- oder Gesteinsbohren -
Source: