Don Duncan

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West Linn, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Basketball type game
- Patent number 5,192,080
- Issue date Mar 9, 1993
- Don Duncan
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Utility cleaning tool for windshield wiper blades
- Patent number 5,123,764
- Issue date Jun 23, 1992
- Marvin G. Duncan
- B60 - VEHICLES IN GENERAL