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  1. Bell CFL 13W BLD 2 Pin Very Warm White (75 Watt Alternative) Bell 04239. Next Day UK Delivery

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  1. 1 day ago · light-emitting diode (did not invent the first visible light, only theorised) – H. J. Round; Linear motor is a multi-phase alternating current (AC) electric motor – Charles Wheatstone then improved by Eric Laithwaite; First person to person to publicly predict and describe (although not the inventor) of the Microchip – Geoffrey W.A. Dummer