1961
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Born in Aachen
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1980
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Abitur certificate in Kiel.
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1988
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Diploma of Architecture at the Technical University of Berlin.
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1989-1991
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Freelance architect with the architecture firm Joachim Hartmann.
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1991/1992
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Salaried architect with the architecture firm Büro Ruiken & Vetter.
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1992
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Formation of the architecture firm A3 Architekten Jacob, Janssen und Thöne with the 2 partners Dipl.-Ing Gereon Thöne and Dipl.-Ing. Jochen Janssen.
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Dec. 2005
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Amicable ending of the partnership and closure of the office of A3 Architekten Jacob, Janssen und Thöne
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Jan. 2006
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formation of the architecture firm A3 Architekten Jan Jacob with sole responsibility.
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