GB1072767A
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Improvements relating to band pass filters and rejectors
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GB542820A
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Improvements in or relating to television systems
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GB587875A
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Improvements in or relating to deflecting circuits for cathode ray tubes or the like
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GB541596A
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Improvements in or relating to magnetic deflecting means for electron discharge devices
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GB542035A
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Improvements in or relating to methods of terminating electrical transmission lines and circuits therefor
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GB541937A
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Improvements in or relating to photoelectric cells
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GB541889A
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Improvements in or relating to rapid photographic processing apparatus
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GB541794A
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Improvements in or relating to photoelectric cells
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GB541785A
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Improvements in or relating to methods of manufacturing photoelectric cells
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GB541567A
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Improvements in or relating to electron discharge tubes and methods of manufacturingsuch tubes
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GB540739A
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Improvements in or relating to photoelectrically sensitive electrodes
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GB536662A
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Improvements in or relating to containers for receiving and coiling photographic film or other strips fed thereto
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GB535477A
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Improvements in or relating to electromagnetic deflecting means for use with electron discharge devices
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GB533650A
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Improvements in or relating to cathode ray tube and like apparatus and methods of operating the same
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GB532074A
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Improvements in or relating to deflecting arrangements for use with cathode ray tubes and the like
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GB532525A
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Improvements in or relating to methods of manufacturing mosaic electrodes
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GB532259A
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Improvements in or relating to photoelectrically sensitive electrodes
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GB530591A
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Improvements in or relating to electron discharge devices for use in television or like systems
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US2202505A
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Electromagnetic focusing coil
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GB530260A
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Improvements in or relating to electron multipliers
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