2014
Stephanie Kwolek, American chemist and engineer (born 1923)
Stephanie Kwolek, American chemist and engineer (born 1923)
Stephanie Kwolek, American chemist and engineer (born 1923)
American chemist who invented Kevlar (1923–2014)
Stephanie Kwolek, American chemist and engineer (born 1923)
Stephanie Kwolek, American chemist and engineer (born 1923)