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GB201618331D0
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A restraint for a horse
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Peripheral seal for a respirator mask
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Low-pressure warning device for breathing-gas apparatus storage reservoirs
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Breathing mask with expulsion duct
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Emergency breathing apparatus
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Mask tensioning system
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Respirator mask with adjustable visor
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Improved noise damping mask
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Non-return valve with insert
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Respirator
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Aircrew oxygen masking mounting system
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Noise damping mask
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High pressure gasket seal
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Improved emergency escape hood
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US4622696A
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Under helmet hood for aircrew
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