4. Surgery
  5. Respiratory method or device
  6. Gas produced by electrolysis or chemical reaction

David Phillip Winter

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Needle valve for flow control

Valves and valve actuation – Mechanical movement actuator – Plural motions of valve
Reexamination Certificate

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Portable oxygen concentration system and method of using the...

Surgery – Respiratory method or device – Gas produced by electrolysis or chemical reaction
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2766284

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