Lewis Phectic Haslett was an inventor and the first person to receive a patent (US 6529 , "Inhaler or Lung Protector") for an early form of the gas mask.
Complete article available at this page.
Lewis Haslett Inventions Information
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Lewis Phectic Haslett was an inventor and the first person to receive a patent (US 6529 , "Inhaler or Lung Protector") for an early form of the gas mask.
Complete article available at this page.
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