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GB1183647A
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Improvements in or relating to Instrument Cases.
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GB1193821A
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Improvements in or relating to Electrically Suppressed-Zero Measuring Arrangements
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GB1183333A
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Improvements in or relating to Pulse-Width Demodulation
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GB1027233A
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Improvements in or relating to pen recording instruments
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GB1010542A
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Improvements in or relating to tachometer generator circuits
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GB976667A
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Improvements in or relating to electrical instruments
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GB1026196A
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Improvements relating to frequency meters
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GB1026012A
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Improvements in or relating to frequency meters,speed indicators and like impulse rate indicators
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GB865965A
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Improvements relating to inks
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GB774134A
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Improvements relating to voltage regulators
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GB751544A
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Improvements relating to electrical indicating instruments
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GB751973A
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Improvements relating to electrical resistance testing equipment
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GB757033A
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Improvements relating to electrical measuring instruments of the moving coil type
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GB704191A
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Improvements relating to slip indicators
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GB698357A
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Improvements relating to moving coil relays
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GB704088A
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Improvements in or relating to electrical apparatus for indicating whether or not the speed of a rotary member is above a predetermined minimum
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GB679511A
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Improvements relating to electrical testing equipment
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GB616607A
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Improvements in or relating to centrifugal clutches
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GB605592A
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Improvements in acceleration and deceleration testing instruments for motor and like vehicles
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GB603263A
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Improved mounting of the movements of indicating and recording instruments
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