WORLDKINGS - Old Events - June 12, 2018 - Gas mask patented by Lewis Haslett in 1849
11-06-2018
(Worldkings.org) The gas mask is a mask used to protect the user from inhaling airborne pollutants and toxic gases.
11-06-2018
(Worldkings.org) The gas mask is a mask used to protect the user from inhaling airborne pollutants and toxic gases.