Projects of David Frohnau (1 Hits)

Energy Efficient Vacuum Cleaner 2.0 (Engineering, 2015)

Hans-Herbert Hornstein, Matthias Justen, David Frohnau School year7b, 7b, 7b Supervisor Franziska Merten
Abstract Report Awards

Pictures of David Frohnau (1 Hits)

Energy Efficient Vacuum Cleaner 2.0 (2015)

Matthias Justen, David Frohnau, Hans-Herbert Hornstein - Regional Contest Düsseldorf Matthias Justen, David Frohnau and Hans-Herbert Hornstein with their efficient vacuum cleaner
Projects Pictures

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