GB1441498A
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Rotary air compressors
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GB1441515A
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Rotary gas compressors and expnanders
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GB1413426A
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Rotary air compressor sets with injection of water
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GB1407135A
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Rotary gas compressors and expansion machines of the worm and pinion type
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GB1388537A
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Rotary positive-displacement machines for compression or expansion of a fluid
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US3804564A
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Globoid-worm machines for varying the pressure of a fluid
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GB1390085A
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Rotary positive displacement machines
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US3752606A
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Liquid injection system for globoid-worm compressor
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GB1345946A
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Liquid injection system for globoid-worm compressor
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CA921004A
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Rotatable worm fluid compression-expansion machine
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