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Drehschieberpumpe Rotor Schieber. de May Rotor und Schieber einer Drehschiebervakuumpumpe Bernd Wiebus Bernd Wiebus Public domain Bernd Wiebus Original upload log de Wdwdbot CommonsHelper de DrehschieberpumpeRotorSchieber Bernd Wiebus bytes no Andere Versionen Anmerkungen Check categories August Rotary vane pumps