Patents/Inventors

Liji Su

XiamenCN7 patents

2 Patents

US126205372026
Magnetic Circuit System with Enhanced Initial Electromagnetic Attraction and High-voltage DC Relay
XIAMEN HONGFA ELECTRIC POWER CONTROLS CO., Ltd.
0 cites
US125623202026
High-voltage DC Relay with Permanent Magnet Arc Extinguishing Function
Xiamen Hongfa Electric Power Controls Co., Ltd.
0 cites