Brad D. Cornell

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Jump rope play feature for a pinball game
- Patent number 5,915,693
- Issue date Jun 29, 1999
- Peter J Piotrowski
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Multimode target with variable trajectory ball ramp
- Patent number 5,913,516
- Issue date Jun 22, 1999
- Peter J Piotrowski
- A63 - SPORTS GAMES AMUSEMENTS