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File:Junker Patentschrift 613176-1931 Anlage.jpg

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Deutsch: Anlage zum Patent Nr. 613176 für Kap. J. Junker für die von ihm erfundene Ausführung einer Morsetaste.
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Source Privatarchiv
Author Reichspatentamt Berlin

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Public domain This image is in the public domain according to German copyright law because it is part of a statute, ordinance, official decree or judgment (official work) issued by a German authority or court (§ 5 Abs.1 UrhG).

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current10:21, 2 January 2020Thumbnail for version as of 10:21, 2 January 20201,308 × 1,853 (312 KB)OldfashionFreak (talk | contribs){{Information |description ={{de|1=Anlage zum Patent Nr. 613176 für Kap. J. Junker für die von ihm erfundene Ausführung einer Morsetaste.}} |date =1931 |source =Privatarchiv |author =Reichspatentamt Berlin }}

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