Linear LLC. Company Profile | Visit Website 2055 Corte Del NogalCarlsbad, CA 92011Phone:800-421-1587Fax:800-468-1340 Products LCO75 Garage Door Operator Company Product Linear announces the release of the LCO75 garage door operator for light-duty commercial and residential carriage house-style door applications. Rated at ¾ hp, the LCO75 can operate with rails from... Product • November 20th, 2008 Want to know more about this company? Click here to request more information about Linear LLC. .