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English

At least one manufacturer in the early 1920s, World Records, produced records that played at a constant linear velocity, controlled by Noel Pemberton Billing's patented add-on governor device.

Spanish

World Records, fabricante de discos, intentó extender el tiempo de reproducción al reproducir discos a una velocidad linear constante, controlada por el mecanismo gobernador patentado de Noel Pemberton Billing.