4. Apparel
  5. Guard or protector
  6. For wearer's head

David N. Pennell

Inventor

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Helmet assembly

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

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Valve for a pressure breathing system which accomplishes the Val

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent

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Profile ID: LFUS-PAI-P-591041

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