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File:Patentschrift 220485 Wilhelm Wiegand.jpg

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Deutsch: Patentschrift 220485 von Wilhelm Wiegand
Date
Source Wilhelm Wiegand
Author Wilhelm Wiegand (1881–1951)

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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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current10:27, 13 November 2018Thumbnail for version as of 10:27, 13 November 20184,710 × 6,460 (4.42 MB)Sattdampf (talk | contribs){{Information |Beschreibung = Patentschrift 220485 von Wilhelm Wiegand |Quelle = Wilhelm Wiegand |Urheber = Wilhelm Wiegand |Datum = 18.03.1908 |Genehmigung = |Andere Versionen = |Anmerkungen = }}

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