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GB1181307A
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Improvements in Heat Sinks for Electric Lamps
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US3251986A
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Centering means for light sources in lighting fittings
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GB979987A
|
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Improvements in electric light fittings
|
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GB868141A
|
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Improvements in and relating to combined lighting and air conditioning systems
|
|
GB864894A
|
|
Improvements in or relating to combined lighting and air conditioning systems
|
|
GB867323A
|
|
Improvements in or relating to electric lighting fittings
|
|
GB827076A
|
|
Improvements in and relating to lighting fittings and installations including such fittings
|
|
GB837422A
|
|
Improvements in or relating to indirect lighting fittings
|
|
GB769075A
|
|
Improvements in and relating to ceiling panels and ceiling constructions incorporating such panels
|
|
GB803781A
|
|
Improvements in or relating to lighting fittings
|
|
GB758889A
|
|
Improvements in or relating to acoustic baffles
|
|
GB753093A
|
|
Improvements in or relating to light-transmitting ceiling constructions
|
|
GB751559A
|
|
Improvements in or relating to light-transmitting louvre constructions
|
|
GB749968A
|
|
Improvements in or relating to false ceiling and lighting screen constructions
|
|
GB781054A
|
|
Improvements in electric lighting fittings
|
|
GB781055A
|
|
Improvements in electric lighting fittings
|
|
GB781053A
|
|
Improvements in electric lighting fittings
|
|
GB759527A
|
|
Improvements in or relating to lighting fittings
|
|
GB756438A
|
|
Improvements in or relating to electric lighting fittings
|
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GB700433A
|
|
Improvements in and relating to electric lighting fittings
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