Patents/Assignees

HAINING HELI MACHINERY & TECHNOLOGY CO., Ltd.

3 patents in portfolio

US12569066utility2026
Seat Frame and Seat with Switchable Sitting and Lying Positions
0 cites
US11839303utility2023
Movable Chair Device and Chair Assembly
0 cites
US11638483utility2023
Chair Backrest Mechanism, Chair Frame and Chair
0 cites