4. Surgery
  5. Respiratory method or device
  6. Face mask covering a breathing passage

Doris Wong

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Apparatus for diluting chemical concentrates

Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Treatment
Patent

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Nasal mask

Surgery – Respiratory method or device – Face mask covering a breathing passage
Patent

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Profile ID: LFUS-PAI-P-263691

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