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US3284805A
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Combined cabin uniform and mechanical partial pressure suit complete with helmet
|
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Combined emergency compression tube and air lock with life sustaining system for space vessels
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Reduction regulator valve for scuba system
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Variable volume rebreathing bag for scuba system
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Quick release mechanism
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Pressure compensated inhalationexhalation valve for pressure breathing mask
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Breatching control valve
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Pressure demand breathing oxygen mask with built-in regulator
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Reducing and diluting adapter
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Self oriented mask harness arrangement
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Mask-harness tension compensating device
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Respiratory apparatus
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Device for treatment of pulmonary diseases
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Breathing mask apparatus
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Combined compensated inhalationexhalation valve for pressure breathing mask
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US2882896A
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Breathing apparatus
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