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US2240465A
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Rotary machine
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Rotary machines of the sliding vane type
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GB430151A
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Improvements relating to rotary machines or engines
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Rotary machine or engine
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GB255720A
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Improvements in rotary pumps and the like, with outwardly sliding spring balanced vanes
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GB250503A
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Improvements in and relating to rotary suction pumps or vacuum pumps, and force pumps or compressors
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Improvements relating to liquid-cooling towers
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Condenser for waste steam
|
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GB227443A
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Improvements in or relating to waste-steam condensing plants
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GB224900A
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Improvements in rotary pumps having pistons with outwardly sliding spring balanced vanes
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Rotary pump
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DE468068C
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Cooling down system with electrically driven suction fan
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