Robert C. Friesl

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Ramp with integral ball deflector for pinball games
- Patent number 5,899,454
- Issue date May 4, 1999
- Williams Electronics Games, Inc.
- Brian R. Eddy
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Ball diverter for a pinball game
- Patent number 5,507,488
- Issue date Apr 16, 1996
- Williams Electronics Games, Inc.
- Brian R. Eddy
- A63 - SPORTS GAMES AMUSEMENTS