Patent Assignment
Reel/Frame 064504/0144
Assignment of Assignor's Interest
Recorded: 2023-08-07
Pages: 2
Assignor
ZHANG, CONG
Executed: 2022-07-28
Assignee
APEX OILFIELD EQUIPMENT (QINGDAO) CO., LTD
NO. 666 KUNLUNSHAN NORTH ROAD, HUANGDAO DISTRICT, QINGDAO, SHANDONG, QINGDAO, 266000, CHINA
Covered Property
(1)
Beam Pumping Unit and Design Method for Beam Pumping Unit