. English: Konrad Kyeser, Bellifortis: Device for the forced lowering of a drawbridge, in ms. Biblioteca Apostolica Vaticana, Vaticanus Palatinus lat. 1994, fol. 66v. Deutsch: w:de:Konrad Kyeser, Bellifortis: Vorrichtung zum gewaltsamen Herabholen einer Zugbrücke. Biblioteca Apostolica Vaticana, Vaticanus Palatinus lat. 1994, fol. 66v. early 15th century. Konrad Kyeser 345 Konrad Kyeser, Bellifortis, Vaticanus Palatinus lat. 1994

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Keywords: ., /, /., 15th, century., early, konrad, kyeser.