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ES248057A1
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System of bars for optical optics (Machine-translation by Google Translate, not legally binding)
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US2510102A
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Arc lamp
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CA621320A
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Die stamping process and apparatus
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CA473374A
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Systems for regulating positive electrodes of arc lamps
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CA596709A
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Arc lamp with air current concentration
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CA482762A
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Illumination system
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CA639777A
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Processes for the reproduction of images in color
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CA548231A
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Positive head for high-intensity arc lamps
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CA580135A
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Apparatus for simultaneous projection of a plurality of images composing a television image
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CA583907A
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Apparatus for reproduction of television pictures or the like
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CA561594A
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Method of reproducing images in color
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CA615672A
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Method of producing a subtractive color film
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CA557205A
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Projection illumination system for the homogeneous distribution of light
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CA571409A
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Apparatus for reproduction of television pictures or the like
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CA571408A
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Lenticulated film and a method for its production
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CA482090A
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Illumination system
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CA501778A
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Projection lamp for lenticulated film
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CA504222A
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Telegraph system
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CA496414A
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Arc lamps
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CA474519A
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Arc lamps
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