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MAZDA:

General Electric filed a federal trademark application for the Mazda name for use in connection with the manufacture and sale of electric lamps on 29 December 1909. The application asserted a first use of the name by General Electric in interstate commerce on 21 December 1909. General Electric received trademark registration number 77,779 from the U.S. Patent and Trademark Office on 3 May 1910. The first lamps marketed under the Mazda name had European-designed tantalum and nonductile tungsten filaments. However, General Electric soon switched to producing ductile tungsten filament lamps based on the work of Coolidge and Langmuir.