David J. Houston

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East Lansing, MI, US

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Patents Applicationslast 30 patents

Information Patent Application
Ball Return Device
- Publication number 20050159251
- Publication date Jul 21, 2005
- David J. Houston
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
A TRAINING DEVICE USED WITH A SPORTS STICK HAVING A HOLLOW HANDLE
- Publication number 20050096159
- Publication date May 5, 2005
- David J. Houston
- A63 - SPORTS GAMES AMUSEMENTS