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DE722732C
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Loudspeaker system for dynamic loudspeakers
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DE724232C
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Process for the production of luminous screens
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DE730058C
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Arrangement for frequency division
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DE717747C
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Method of light modulation
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DE720721C
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Device for converting a direct voltage into a higher or lower direct voltage
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DE721232C
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Method and arrangement for the precise setting of the resonance frequency of a luminous crystal
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DE720738C
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Circuit arrangement for eliminating interference in wireless receiving devices
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DE717573C
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TV dismantling device with lens disk or lens barrel with several spiral threads
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DE719146C
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Band filter arrangement with variable bandwidth
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DE716140C
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Variable capacitor
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DE723232C
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Overlay receiver using a multi-grid mixer tube
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DE730887C
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Cathode ray tubes for generating intensity-controlled light, in particular for television purposes
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DE723285C
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Optical arrangement for projecting an image onto the screen of a television transmitter tube
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DE716094C
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Method for modulating a light beam with the aid of an electro-optical control system
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DE724812C
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Heating element for indirectly heated high-voltage cathodes
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DE721008C
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Circuit arrangement for the stabilization of low frequency amplifiers for television purposes
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DE722053C
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Overlay receiver using a multi-grid mixer tube
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DE706974C
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Process for the generation of synchronization characters in television film transmission
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DE720548C
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Arrangement for forwarding the brightness voltages and the breakover voltages supplied to operate a television cathode ray tube
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DE724027C
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Device for scanning a film by means of a perforated disc provided with a double spiral
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