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

Cheng-Kun Chu

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Face mask structure

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

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Heat exchange structure

Heat exchange – With coated – roughened or polished surface
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Profile ID: LFUS-PAI-P-3028724

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