PetroChina Co Ltd Files Chinese Patent Application for Stroke Automatic Adjusting Device of Beam-Pumping Unit

Press/Media: Press / Media

PeriodJun 11 2019

Media coverage

1

Media coverage

  • TitlePetroChina Co Ltd Files Chinese Patent Application for Stroke Automatic Adjusting Device of Beam-Pumping Unit
    Media name/outletGlobal IP News. Oil & Gas Patent News
    Country/TerritoryIndia
    Date06/11/19
    PersonsTao Zhang
View all 1
View less