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GB438219A
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Improvements in or relating to means for reproducing film pictures on a screen of electric lights
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GB401924A
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Improvements in or relating to monogrammatic apparatus for displaying signs and pictures
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DE611718C
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Switching arrangement for incandescent cinema with film and photoelectrically controlled relays with retaining coils
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GB411835A
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Means for reproducing film pictures by means of a screen of electric lights
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GB408128A
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Improvements in or relating to apparatus for reproducing on incandescent lamp screens pictures derived from cinema films
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GB411819A
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Improvements in or relating to apparatus for reproducing on incandescent lamp screens pictures derived from cinema films
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