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ES167289A1
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A procedure for regulating the tonality of a light source by keeping the luminosity
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DE865068C
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Process for the production of sound rest strips with a noise level equal to the sound recording
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DE754089C
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Process for the separate photochemical treatment of two photographic recordings arranged on the same carrier
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DE752503C
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Listening table
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DE866406C
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Circuit arrangement for producing sound recordings in half-wave writing
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DE752950C
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Arrangement for monitoring the symmetry in the reproduction of push-pull sound recordings
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DE871533C
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Transmission device for reproducing sound recordings in half-wave writing
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DE753763C
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Method for scanning optical sound recordings
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DE623912C
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Device for achieving in-phase running of several cinematographic apparatuses
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DE614984C
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Recording camera for sound films encapsulated in a noise-sealing cover
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DE493645C
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Oil separator for a device for generating and humidifying the cooling air for cinema films
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DE440909C
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Slide equipment, especially for double cinema projectors
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DE440910C
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Double projector
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DE441082C
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Device for supplying cooling air for movies
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DE441081C
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Device for generating and humidifying the cooling air for cinema films
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DE562087C
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Decoration structure for image sound recordings
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DE450256C
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Carrying stands for film projection apparatus
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