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Timing system

Communications: electrical – Systems – Game reporting
Patent

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Timing system

Communications: electrical – Systems – Game reporting
Patent

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Touch pad scoring apparatus for dart games

Communications: electrical – Systems – Game reporting
Reexamination Certificate

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Track alert system for automobile racing

Communications: electrical – Systems – Game reporting
Patent

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Treasure hunt game utilizing GPS equipped wireless...

Communications: electrical – Systems – Game reporting
Reexamination Certificate

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Umpire's counter

Communications: electrical – Systems – Game reporting
Patent

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Universal intelligent group guidance system and method

Communications: electrical – Systems – Game reporting
Patent

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Validity signal apparatus for monitoring a line boundary

Communications: electrical – Systems – Game reporting
Patent

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Wall-mounted scoreboard

Communications: electrical – Systems – Game reporting
Reexamination Certificate

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Warning system for racetrack

Communications: electrical – Systems – Game reporting
Patent

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Wireless motion monitoring device incorporating equipment...

Communications: electrical – Systems – Game reporting
Reexamination Certificate

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