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GB821246A
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Improvements in or relating to colour television system
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GB792863A
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Improvements in or relating to compatible colour television systems
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GB639052A
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Photo electric device for identifying signs marked on surfaces
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GB630314A
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Improvements in radio guiding systems, especially for the blind landing of airplanes
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GB636534A
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Improvements in apparatus relating to television transmission or reception
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GB630871A
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Improvements in oscillation generator systems
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GB652153A
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Improvements in or relating to devices for the correction of defects in television images
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GB626715A
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Improvements to telecinema transmission installations
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GB642303A
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Improvements in electromagnetic apparatus for determining a direction
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GB600117A
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Improvements in and relating to radio navigation
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