David Ishii

Follow

Person

San Dimas, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Proprioceptive pitch trainer baseball
- Patent number 6,663,519
- Issue date Dec 16, 2003
- Timothy Kuhn
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Proprioceptive pitch trainer baseball
- Publication number 20030027671
- Publication date Feb 6, 2003
- Timothy Kuhn
- A63 - SPORTS GAMES AMUSEMENTS