Inventor

CONG SEN

CN2 patents

Patents

2 patents

US10762807B2Sep 1, 2020

Circumferential laser dynamic display device

BEIJING CENTRAL PRESS UNION TECH CO LTD0 citations39

US10514548B1Dec 24, 2019

Laser animation display method

BEIJING CENTRAL PRESS UNION TECH CO LTD0 citations29