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Keywords from Image Description:
ParsevalBroschuereA oval. de LuftfahrzeugGmbH Parseval Broschuere Titelblatt en oval picture cropped from LuftfahrzeugGmbH's brochure front cover de Broschuere der LuftfahrzeugGmbH Parseval aus dem Nachlass von Theodor Kiefer Chefingenieur bei Parseval ca Anonymous anonymous published more than years ago File ParsevalBroschuereA