Keywords: Sergey Lebedev.jpg A photo of Sergei Lebedev 1874 “1934 Russian chemist and inventor of commercially viable synthetic rubber http //bse sci-lib com/particle014392 html 19 59 23 December 2009 UTC author Public domain PD-old Original upload log en wikipedia Patriot8790 page en wikipedia Sergey_Lebedev jpg 2009-12-23 19 59 Greyhood 144×200× 5174 bytes <nowiki> A photo of Sergei Lebedev 1874 “1934 Russian chemist and inventor of commercially viable synthetic rubber http //bse sci-lib com/particle014392 html ~~~~~ unkn</nowiki> Sergei Vasiljevich Lebedev Inventions Inventors from Russia |