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GB800715A
|
|
Improvements in or relating to portable electric lamps especially for miners
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GB739457A
|
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Improvements in or relating to electric circuits for electric discharge lamps
|
|
GB687468A
|
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Improvements in or relating to transformer circuits
|
|
GB735421A
|
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Improvements in or relating to means for operating electrical discharge tubes or lamps in which two or more tubes or lamps are connected in series
|
|
GB682532A
|
|
Improvements in or relating to apparatus for topping-up electric batteries
|
|
GB669643A
|
|
Improvements in or relating to means for charging batteries
|
|
GB666241A
|
|
Improvements in or relating to battery cases
|
|
GB646606A
|
|
Improvements in or relating to electric lamps
|
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GB634977A
|
|
Improvements in or relating to lamp cases and other containers
|
|
GB626985A
|
|
Improvements in or relating to the starting or striking of fluorescent tubes
|
|
GB626678A
|
|
Improvements in or relating to electric batteries
|
|
GB618708A
|
|
Improvements in or relating to electric battery charging stands
|
|
GB655250A
|
|
Improvements in or relating to electric lamps
|
|
US2475696A
|
|
Push-button operated electric switch
|
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GB618332A
|
|
Improvements in or relating to stopper or closure cap devices for electric batteries
|
|
GB655248A
|
|
Improvements in or relating to lighting devices
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|
GB617650A
|
|
Improvements in or relating to totally enclosed electrical switches
|
|
GB627714A
|
|
Improvements in or relating to electric socket-switches
|
|
GB608903A
|
|
Improvements relating to electric circuits applicable to fluorescent tubes
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GB608387A
|
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Improvements relating to egg whisks and like beating appliances
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