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Keywords from Image Description:
Fotothek df tg Physik Thermodynamik Retorte Giekanne. Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Frankfurt Main Retorte und Gievorrichtung Papier Kupferstich cm Physik Thermodynamik Retorte Giekanne ppn Druck Deutsche Fotothek gefrdert von der Deutschen Forschungsgemeinschaft Projekt Technikgeschichte Jh