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

Daniel M. Gelfman

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Breathing air filtration device

Medical and laboratory equipment – Prophylactic article – Ear plug or nose clip
Design Patent

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Breathing air filtration device

Medical and laboratory equipment – Prophylactic article – Ear plug or nose clip
Design Patent

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Breathing air filtration device

Medical and laboratory equipment – Prophylactic article – Ear plug or nose clip
Design Patent

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Breathing air filtration devices

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

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Profile ID: LFUS-PAI-P-2338180

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