Inventor

ZENG GUANGMIN

CN3 patents

Patents

3 patents

US9194603B2Nov 24, 2015

Heating and ventilating fan

YUAN HONGJIAN13 citations75

US9188361B2Nov 17, 2015

Ventilating fan for heating

YUAN HONGJIAN2 citations57

US9709066B2Jul 18, 2017

Ventilating fan

YUAN HONGJIAN0 citations36