A TELOP (TELevision OPtical Slide Projector) was the trademark name of a multifunction, four-channel "project-all" slide projector developed by the Gray Research & Development Company for television usage, introduced in 1949. It was best remembered in the industry as an opaque slide projector for title cards.
A TELOP (TELevision OPtical Slide Projector) was the trademark name of a multifunction, four-channel "project-all" slide projector developed by the Gray Research & Development Company for television usage, introduced in 1949. It was best remembered in the industry as an opaque slide projector for title cards.
Source: Wikipedia "Telop" · CC BY-SA 4.0
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