US2048661A
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Cooling of air by refrigeration
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US2018453A
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Cooling of air by refrigeration
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DE575223C
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Method and device for regulating the temperature and humidity of circulating room air
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GB331824A
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Air conditioning and ventilating systems for theatres and other enclosures
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GB331219A
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Improvements in air treating devices
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GB331218A
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Improvements in method and apparatus for cooling air
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US1751805A
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Process of ventilating
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CA299730A
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Method of cooling with silica gel
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CA294931A
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Method and apparatus for cooling air
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CA385748A
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Heat exchanging apparatus
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CA317644A
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Heating and humidification system
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CA381690A
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Air conditioning apparatus
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CA372161A
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Air conditioning system
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CA339493A
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Air conditioning apparatus
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CA293158A
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Wet bulb thermostat
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