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IE12804L
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Light-sensitive cells
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GB379398A
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Light-sensitive device
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GB372288A
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Improvements in systems comprising light-sensitive cells
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GB369261A
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An improved method and means for measuring and/or recording light intensity
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GB367036A
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Improvements in housings for light-sensitive cells
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GB366932A
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Improvements relating to light-sensitive cells
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GB366086A
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Improvements applicable to apparatus used in the electrical reproduction of sound
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GB358672A
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Improvements relating to the control of the characteristics of light-sensitive materials
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GB353172A
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Improvements relating to non-microphonic light-sensitive cell construction
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GB351468A
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Improvements relating to light-sensitive cells
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GB343939A
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Means for the stabilising of light-sensitive films
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GB346260A
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Improvements relating to temperature compensation of light sensitive bridges
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GB339245A
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Means for controlling the working temperature of light sensitive cells
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