Young Cheon CHA

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Gwangju, KR

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Patents Applicationslast 30 patents

Information Patent Application
THREE-DIMENSIONAL TARGET SYSTEM FOR BALL GAME SPORTS
- Publication number 20210031082
- Publication date Feb 4, 2021
- Young Cheon CHA
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
TRACTION DEVICE USING DRONE
- Publication number 20190344770
- Publication date Nov 14, 2019
- Young Cheon CHA
- B60 - VEHICLES IN GENERAL