Christian H. Oberth

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Viewing device for generating a three-dimensional image
- Patent number 4,398,723
- Issue date Aug 16, 1983
- Marvin Glass & Associates
- Erick E. Erickson
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Microcomputer controlled reaction game
- Patent number 4,340,223
- Issue date Jul 20, 1982
- Marvin Glass & Associates
- Wayne A. Kuna
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Electronic matrix board game apparatus and method
- Patent number 4,339,135
- Issue date Jul 13, 1982
- Marvin Glass & Associates
- Jeffrey D. Breslow
- A63 - SPORTS GAMES AMUSEMENTS