4. Medical and laboratory equipment
  5. Equipment for diagnosis, analysis, or treatment
  6. Article for the introduction, removal or collection of fluids

Robert H. Frater

Inventor

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Front face portion of mask assembly

Medical and laboratory equipment – Equipment for diagnosis – analysis – or treatment – Article for the introduction – removal or collection of fluids
Design Patent

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Mask assembly

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

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Mask assembly

Medical and laboratory equipment – Equipment for diagnosis – analysis – or treatment – Article for the introduction – removal or collection of fluids
Design Patent

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Mask with gusset

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

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Mask with gusset

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

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Profile ID: LFUS-PAI-P-2722580

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