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Centrifugal take-off and control nozzle
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Centrifugal nozzle with adjustable outlet vanes
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Method and structure for controlling thermal effects in the air conditioning of multi-storied buildings
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Air conditioning of entrance areas
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Rifled air control nozzles
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Centrifugal fan with wave trap and cut-off
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US2684232A
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Centrifugal air washer and conditioner
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Expander silencer unit
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Systems for ventilating tunnels and the like
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Powdered fuel feeding system for internal-combustion engines
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Adjustable nozzle
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Centrifugal fan
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CA607657A
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Method and apparatus for air conditioning rooms and like spaces
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