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GB9919225D0
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An imaging system with refracting block and concave mirror
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US5996126A
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Crown pad and head-protective helmet
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Head-protective helmet and assemblies thereof
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Head-protective helmet mounting member for mounting helmet components together and head band
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Combination head and eye-protective apparatus and goggles
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Combination head and eye-protective apparatus and goggles
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Thermal protective overjacket
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Combination head-protective helmet and thermal imaging apparatus
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Positive pressure breathing assembly and demand regulator therefor
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Assembly for monitoring helmet thermal conditions
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US5291880A
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Protective helmet with protective facepiece connection and adjustment provision
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CA2045241A1
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Combination head-protective helmet with local and remote voice triggered communication system
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Combination head-protective helmet & communications system
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EP0432486A1
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Helmet for monitoring thermal conditions therein
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US5079780A
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Chinstrap activated head adjustment assembly for a protective helmet assembly
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CA2011955A1
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Closed-circuit positive pressure breathing apparatus with pneumatically operated storage chamber
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Pressure monitoring device for self-contained breathing apparatus
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CA2000584A1
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Chinstrap activated head adjustment assembly for a protective helmet assembly
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US5000174A
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Positive pressure breathing assembly and demand regulator therefor
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US4937136A
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Laminate for fire protective gear
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