US Patent 11751691 Seat connecting device with adjustable backrest
Is a
Date Filed
June 12, 2020
Date of Patent
September 12, 2023
Patent Application Number
17623044
Patent Inventor Names
Bin Zheng
Chiachi Shu
Zhenlin Meng
Wenyuan Pan
Kun Yang
Patent Jurisdiction
Patent Number
Patent Primary Examiner
CPC Code
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