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GB538630A
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Arrangement for automatic or manual selectivity or tuning control of electric oscillatory circuits
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GB538015A
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Improvements in or relating to x-ray apparatus
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GB538303A
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Improvements in apparatus for generating electricity and in electric power systems for vehicles and trains
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GB530917A
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Apparatus for producing high tension direct current
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GB530616A
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Improvements in or relating to apparatus for indicating the adjusted frequency of an oscillatory electric circuit
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GB531612A
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Radio apparatus or the like
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GB529090A
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Arrangement for varying the tuning of an oscillatory electric circuit
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GB528736A
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Improvements in radio apparatus and the like
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GB519786A
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Improvements in carrier wave receiving apparatus
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GB519058A
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Arrangement for producing biassing potentials in circuits incorporating electron discharge valves
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GB511031A
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Apparatus comprising a low permeability core with an inductive winding thereon
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GB510862A
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Improvements in or relating to automatic tuning arrangements for electric oscillatory circuits
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GB510941A
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Stabilising arrangement for valve amplifying apparatus
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GB482561A
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Electronic power amplifier
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GB490058A
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Arrangement for automatically controlling the tuning, selectivity or volume in radio apparatus or the like
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GB489486A
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Improvements in frequency changers for heterodyne receivers and modulators
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GB481062A
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Improved tuning arrangements for oscillatory electric circuits
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GB470945A
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Improved tuning arrangements for oscillatory electric circuits
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GB485285A
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Improvements in or relating to automatic selectivity or tuning control circuits
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GB472710A
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Improvements in or relating to remote control systems for radio and other high frequency apparatus
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