4. Surgery
  5. Respiratory method or device
  6. Means for supplying respiratory gas under positive pressure

Brian R. Davidson

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Oxygen valve system

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

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Portable gas delivery device with impact protection

Fluid handling – With casing – support – protector or static constructional... – Guards and shields
Reexamination Certificate

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Profile ID: LFUS-PAI-P-40719

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