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2954232
Game method and apparatus for sensing the position of an object with respect to its receptacle
Patent #: 4102532
Issued on: 07/25/1978
Inventor: Van Jepmond , et al.
Golf game simulating apparatus
Patent #: 4150825
Issued on: 04/24/1979
Inventor: Wilson
Light actuated shooting arcade game
Patent #: 4192507
Issued on: 03/11/1980
Inventor: Rains , et al.
D260023
Electronic table tennis game apparatus
Patent #: 4363484
Issued on: 12/14/1982
Inventor: Breslow , et al.
Playing or training device
Patent #: 4440400
Issued on: 04/03/1984
Inventor: Neuberger
Equipment for simulated shooting
Patent #: 4592554
Issued on: 06/03/1986
Inventor: Gilbertson
Start system batting unit and method
Patent #: 4834375
Issued on: 05/30/1989
Inventor: Elstein , et al.
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Board game with laser beam paths
Patent #: 5145182
Issued on: 09/08/1992
Inventor: Swift, et al.
D346918
Simulator and practice method
Patent #: 5649706
Issued on: 07/22/1997
Inventor: Treat, Jr., et al.
System for human trajectory learning in virtual environments
Patent #: 5846086
Issued on: 12/08/1998
Inventor: Bizzi, et al.
D409251
Computer readable recording medium recording a program of a ball game and the program, ball game processing apparatus and its methods Patent #: 6478678
Issued on: 11/12/2002
Inventor: Rimoto, et al.