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Patents Applicationslast 30 patents

Information Patent Application
TENSION ADJUSTMENT STRUCTURE OF BOXING TRAINING DEVICE
- Publication number 20200155914
- Publication date May 21, 2020
- HAPPY STAR SPORTS INDUSTRY CO., LTD.
- YAO-LIN HU
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
SPRING TENSION CONTROL DEVICE OF BOXING TRAINER
- Publication number 20150182833
- Publication date Jul 2, 2015
- HAPPY STAR SPORTS INDUSTRY CO., LTD.
- YAO-LIN HU
- A63 - SPORTS GAMES AMUSEMENTS