4. Surgery
  5. Respiratory method or device
  6. Means for removing substance from respiratory gas

James N. Matheson

Inventor

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Combined respirator face piece and strap units

Equipment for safety – protection – and rescue – Fire extinguisher or casing therefor – Portable or hand held
Patent

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Respirator face mask

Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Patent

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Profile ID: LFUS-PAI-P-300293

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