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

Douglas R. Leithauser

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Neck tube closure assembly for cryogenic containers

Refrigeration – Storage of solidified or liquified gas – Liquified gas transferred as liquid
Patent

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Oxygen-conserving regulator assembly

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

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Oxygen-delivery system with portable oxygen meter

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

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Profile ID: LFUS-PAI-P-190217

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