|
GB1207992A
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Improvements in or relating to methods of and apparatus for recording information on a tape-form recording medium
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GB1138686A
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Improvements in or relating to equipment for processing electrically-coded word strings
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Improvements in or relating to electrical selector circuits
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GB1110991A
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Improvements in or relating photographic reproduction
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GB1057093A
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Improvements in or relating to parity checking of binary codes
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GB1035434A
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Improvements in or relating to electrical equipment for coding intelligence
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GB943880A
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Improvements in or relating to electrical signal code generating equipment
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