"American chemist" . . "Walter Otheman Snelling (December 13, 1880 \u2013 September 10, 1965) was a chemist who contributed to the development of explosives and liquefied petroleum gas."@en . . "Walter Otheman Snelling"@en . . . "Snelling, Walter O."@en . . "Walter O. Snelling"@en . . . . "1880-12-13Z"^^ . "1880Z"^^ . "1965Z"^^ . . "1965-09-10Z"^^ . . .