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US06942577B2 Light up pool cue 失效
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Light up pool cue
摘要:
A light up pool cue has control circuitry operatively coupled to a sensor and a light source. The sensor is adapted to detect impact of the pool cue with another object. Upon detection of the impact, the sensor generates an electrical signal to the control circuitry, causing the control circuitry to illuminate the light source.
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