4. A - Human Necessities
  5. 41
  6. D

Nancy Wong

A - Human Necessities – 41 – D

Inventor

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Inventor

Country: Canada

Air filtering soft face mask

A - Human Necessities – 62 – B
Patent

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Hydantoin compounds

C - Chemistry – Metallurgy – 07 – D
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Medical face mask

A - Human Necessities – 41 – D
Patent

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Method of securing ties to a medical gown and a medical gown...

A - Human Necessities – 41 – D
Patent

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Profile ID: LFCA-PAI-P-1940790

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