Douglas Van Dyke

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Patents Grantslast 30 patents

Information Patent Grant
Bowling aiming apparatus
- Patent number 9,724,583
- Issue date Aug 8, 2017
- Douglas Van Dyke
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
BOWLING AIMING APPARATUS
- Publication number 20160082339
- Publication date Mar 24, 2016
- Douglas Van Dyke
- A63 - SPORTS GAMES AMUSEMENTS