Who Invented The Gas Mask And When?
Who Invented The Gas Mask And When? According to First Facts, it states that the “gas mask resembling the modern type was patented by Lewis Phectic Haslett of Louisville, Kentucky who received a patent on June 12, 1849.” U.S. patent #6,529 issued to Haslett, described the first “Inhaler or Lung Protector” that filtered dust from