4. Refrigeration
  5. Vortex tube, e.g., ranque

E. D. Bullard Company

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Adjustable head band suspension system for use with hard hat she

Apparel – Guard or protector – For wearer's head
Patent

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Air delivery and exhalation exhaust system for protective helmet

Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent

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Back-up alarm with improved keeper

Signals and indicators – Vehicle – Vehicle-energy actuated
Patent

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Disposable protective film accessory for the lens of a respirato

Apparel – Guard or protector – For wearer's head
Patent

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Fire fighter's face shield assembly

Apparel – Guard or protector – For wearer's head
Patent

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Profile ID: LFUS-PAI-P-432211

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