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Helmut Hädrich

Helmut Hädrich

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Bau und Erprobung einer kleinen Ersatzbatterie in Lithiumtechnik für Elektrorollstühle

Motivation / Grundidee Was ist der Auslöser (Problem, Wunsch), was ist der Zweck des Pro...

Bohrmaschine Alzmetall

Hersteller Alzmetall (Wikipedia ) Typ AB 3/ ESV Seriennummer 17195 Bauj...

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