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Volker Kefer

SA Siemens Aktiengesellschaft: 3 patents #4,667 of 22,248Top 25%
Overall (All Time): #1,626,693 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6029454 Steam-turbine plant Armin Drosdziok 2000-02-29
5159897 Continuous-flow steam generator Joachim Franke, Eberhard Wittchow 1992-11-03
4829831 Device for measuring flow rate in a pipe Werner Kratzer, Franz Reitbacher 1989-05-16