4. A - Human Necessities
  5. 61
  6. B

William A. Mittelstadt

A - Human Necessities – 61 – B

Inventor

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Inventor

Country: United States Of America

Attachment system for replaceable helmet respirator lens

A - Human Necessities – 42 – B
Patent

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Eye shield for a respiratory mask

A - Human Necessities – 62 – B
Patent

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Filter support, assembly and system

B - Operations – Transporting – 01 – D
Patent

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Half-mask respirator with head harness assembly

A - Human Necessities – 41 – D
Patent

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Ligating clip advance

A - Human Necessities – 61 – B
Patent

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Profile ID: LFCA-PAI-P-1295501

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