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CH8701A
(en)
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Device for achieving circulation or movement of air in heating systems, ventilation etc.
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CH9508A
(en)
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Heating, resp. Cooling and ventilation apparatus
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CH11351A
(en)
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fan
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DK558C
(en)
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Heating and ventilation device for Jærnban etog.
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DK320C
(en)
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Apparatus for heating or cooling liquids.
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CH11376A
(en)
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Central heating and ventilation oven
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ES16897A1
(en)
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An aero-hydraulic device to purify and cool the air in rooms, also applicable to the preservation of food substances.
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CH9613A
(en)
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Air humidifier
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CH10726A
(en)
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Air humidifier
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GB189509818A
(en)
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Improvements in Apparatus for the Ventilation and Heating of Buildings and Apartments.
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GB189523921A
(en)
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Improvements in Ventilating Fans.
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CH10794A
(en)
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Hot air and steam bath apparatus
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CH7072A
(en)
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Fan with heater
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ES13529A1
(en)
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Improvement in the equipment for heating and ventilating buildings and for cooling, cleaning and purifying the air.
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CH10836A
(en)
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Chimney and ventilation hat
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GB189518148A
(en)
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Combined Fire Place and Air Heating Apparatus.
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GB189524600A
(en)
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Improvements in Apparatus for the Circulation of Conduction of Water, Air, Steam, or any other Fluid or Gas.
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CH13297A
(en)
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fan
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GB189518625A
(en)
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Improvements in Heat Radiating and Air Warming and Ventilating Apparatus.
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GB189512814A
(en)
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Improvements in Ventilators or Air Extractors.
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ES14797A1
(en)
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An apparatus for heating and ventilating rooms.
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CH12978A
(en)
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New, adjustable and transportable air flow (wind) heating device
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ES13576A1
(en)
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Improvements in the heating and ventilation of buildings and other similar things.
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GB189523545A
(en)
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An Improved Chimney and Ventilating Shaft Top.
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DK324C
(en)
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Water circulation oven.
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