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Apparatus for transporting a stream of cryogenic liquified gas
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Breathing pack for converting liquid air or oxygen into breathable gas
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Apparatus for supplying breathable gas from oxygen in liquid form
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Method and apparatus for maintaining temperature in an enclosure
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Balanced demand valve
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Controller for pressure suits
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Internally cooled gas pump
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Quick donning mask
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High pressure butterfly valve
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Differential gas supplying apparatus
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