MAKE A MEME View Large Image Stenhousemask.gif Woodcut of Stenhouse's mask from The Velvet-Lined Gas Mask of John Stenhouse from Edward L Youmans' Class-Book of Chemistry New York 1858 - published in Armed Forces Chemical Journal 1958 12 3 24-25; accessed at http //...
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Keywords: Stenhousemask.gif Woodcut of Stenhouse's mask from The Velvet-Lined Gas Mask of John Stenhouse from Edward L Youmans' Class-Book of Chemistry New York 1858 - published in Armed Forces Chemical Journal 1958 12 3 24-25; accessed at http //www33 brinkster com/iiiii/gasmask/stenhouse html PD-old Particulate respirators People wearing respirators
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