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IE17254L
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Ceilings embodying electric heating elements
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GB598897A
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Improvements in connection with electric heating systems for buildings and structures
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GB576262A
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Improvements in connection with ventilator fittings
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GB595245A
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Improvements in connection with electro-magnetic valves
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GB570432A
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Improvements in connection with ventilator fittings
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GB562152A
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Improvements in connection with louvres or dampers
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GB559872A
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Improvements in connection with the heating or cooling of buildings
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GB555623A
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Combined mechanically and electro-magnetically operated valve
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GB544081A
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Improvements in the construction of cooking ovens
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GB536520A
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Improved method of constructing the surface of a ceiling, wall or the like radiating electrically generated warmth
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GB511122A
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Improvements in connection with the warming and cooling of buildings
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GB497029A
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Improvements in connection with ventilators
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GB476560A
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Improvements in the control of the supply in heating or cooling fluid circulating systems
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GB472290A
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Apparatus for the conditioning of air in a building or other structure
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GB475347A
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Improvements in connection with the heating and cooling of buildings
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GB469744A
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Improvements in connection with electrical heating systems for the warming of buildings
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GB467923A
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Improvements in connection with electro-magnetically operated valves
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GB444476A
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Improvements in connection with the heating and cooling of buildings
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GB445937A
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Improvements relating to reinforced concrete floors, roofs and like structures
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GB447468A
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Improvements in connection with solenoid actuated valves for controlling the flow of liquids or gases
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