Hugo Koch
Hugo Alexander Koch (9 March 1870, Delft – 3 March 1928, Düsseldorf) was a Dutch inventor who conceived of and patented an idea for machine encryption — the rotor machine, although he was not the first to do so. He is sometimes erroneously credited as the originator of the Enigma machine, although this has been shown to be the work of German engineer Arthur Scherbius.Koch filed for his rotor machine patent on 7 October 1919, and was granted Netherlands patent 10,700 (equivalent to ), held by Naamloze Vennootschap Ingenieursbureau Securitas in Amsterdam. No machine was built from his patents, and, in 1927, he assigned the rights to Arthur Scherbius, the inventor of the Enigma machine. Scherbius had developed the idea of rotor machine encryption independently from Koch, and had filed for his own patent in 1918. Bauer (1999) writes that Scherbius bought Koch's patents "obviously not because he did not own patents before; presumably he wanted to protect his patents". Provided by Wikipedia
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Konstantin der Grosse und das Christenthum ein Vortrag by Koch, Hugo
Published 1913Call Number: Loading…Identifiant pérenne de la notice dans le SUDOC
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Über die Condensation von Propion- und Formaldehyd by Koch, Hugo
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3
Richard von Cornwall / T. 1 1209-1257 by Koch, Hugo
Published 1887Call Number: Loading…kostenfrei
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Cathedra Petri neue Untersuchungen über die Anfänge der Primatslehre by Koch, Hugo
Published 1930Call Number: Loading…
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Hexenprozesse und Reste des Hexenglaubens in der Wetterau by Koch, Hugo
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Denkschrift zur Feier des hundertjährigen Bestehens des Königl. Blei- und Silbererzbergwerks Friedrichsgrube bei Tarnowitz O.-S by Koch, Hugo
Published 1884Call Number: Loading…
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Die altkristliche Bilderfrage nach den literarischen Quellen. by Koch, Hugo
Published 1917Call Number: Loading…
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Kallist und Tertullian. by Koch, Hugo
Published 1920Call Number: Loading…
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Ausbildung der Fussboden, Wand- und Deckenflächen. by Koch, Hugo
Published 1903Call Number: Loading…
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Die Bauführung. : Mit Einschluss der Baukostenberechnung, der Baurüstungen und der Beförderungsmittel von Baustoffen auf der Baustelle. 2:e Aufl. by Koch, Hugo
Published 1912Call Number: Loading…
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Cyprian und der römische Primat. : Eine kirchen- und dogmengeschichtliche Studie. by Koch, Hugo
Published 1910Call Number: Loading…
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Gartenkunst im Städtebau hrsg. [Illustr.]. by Koch, Hugo
Published 1914Call Number: Loading…
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Pseudo-Dionysius Areopagita in seinen Beziehungen zum Neuplatonismus und Mysterienwesen. : Eine litterarhistorische Untersuchung. by Koch, Hugo
Published 1900Call Number: Loading…
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14
Richard von Cornwall. by Koch, Hugo
Published 1887Call Number: Loading…
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Vincenz von Levin und Gennadius. : Ein Beitrag zur Literaturgeschichte des Semipelagianismus. by Koch, Hugo
Published 1907Call Number: Loading…
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Richard von Cornwall by Koch, Hugo
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Richard von Cornwall by Koch, Hugo
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Cathedra Petri neue Untersuchungen über die Anfänge der Primatslehre by Koch, Hugo
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Rosenberg und die Bibel by Koch, Hugo
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Handbuch der Architektur by Koch, Hugo
Published 1901Other Authors:Call Number: Loading…
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