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United States Utility Patents
4,526,470 - 4,526,479

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NumberTitle
4,526,470 Stray light measurement and compensation
4,526,471 Method for sensing spatial coordinate of article point and apparatus therefor
4,526,472 Mixing capsule assembly
4,526,473 Heads up sports timer with electronic time display
4,526,474 Device for storing and dispensing drug doses
4,526,475 Analog display electronic timepiece with multi-speed hand movement
4,526,476 Correction system for hands display type of electronic timepiece
4,526,477 Piezoelectric buzzer for wrist watches
4,526,478 Electronic sound generating circuit for generation bell toll
4,526,479 Athletic timer



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