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United States Utility Patents
5,158,300 - 5,158,309

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NumberTitle
5,158,300 Golf ball
5,158,301 Football board game
5,158,302 Three-player chess game
5,158,303 Device for developing and testing eye-hand coordination
5,158,304 Captured rotor seal
5,158,305 Pressure-energized two-element seal
5,158,306 Drill chuck
5,158,307 Chuck for machine tools
5,158,308 Device for clampingly centering
5,158,309 Stair climbing apparatus for collapsible wheelchair



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