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GB766899A
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Improvements relating to electric lighting fittings
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GB728055A
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Improvements in electric lighting fittings
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GB697902A
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Improvements in fluorescent electric lighting fittings
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GB661920A
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Improvements relating to reflectors of suspended electric lamps
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GB638796A
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Improvements in fluorescent tubular lighting fittings
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GB638787A
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Improvements in fluorescent tubular lighting fittings
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GB602951A
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Improvements in fluorescent electric lighting fittings
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GB588201A
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Appliance for absorbing shocks and vibrations in electric lighting fittings
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GB580915A
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Fluorescent electrical lighting fittings
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GB590615A
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Improvements in fluorescent electric lighting fittings
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GB559190A
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Tubular fluorescent lamp and reflector fittings
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GB558830A
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Improvements in self-regulating motor-generator sets
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GB558308A
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Improvements in electric-lamp fittings
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GB540189A
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Improvements connected with reflectors of electric-lamp fittings
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GB539876A
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Improvements in or connected with reflectors of electric lamp fittings
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GB528283A
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Improvements in electric-lamp fittings
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GB525632A
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Improvements in and connected with reflector fittings for electric lamps
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GB523726A
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Improvements in electric lamp and reflector fittings
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GB514745A
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Improvements in electric light fittings
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GB515742A
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Improvements in electric lamp fittings having diffuser globes
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