'In 1962 a Louisiana company got a patent for a device that added these to motion pictures in theaters'
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HIDDEN: In 1962 a Louisiana company got a patent for a device that added these to motion pictures in theaters
In 1962 a Louisiana company got a patent for a device that added these to motion pictures in theaters
In 1962 a Louisiana company got a patent for a device that added these to motion pictures in theaters
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