Computador de vàlvules (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Computador de vàlvules" in Catalan language version.

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dpma.de

depatisnet.dpma.de

  • US Patent 2,080,100[Enllaç no actiu]. Gustav Tauschek, Priority date August 2, 1932, subsequent filed as German Patent DE643803, "Elektromagnetischer Speicher für Zahlen und andere Angaben, besonders für Buchführungseinrichtungen" (Electromagnetic memory for numbers and other information, especially for accounting institutions).

google.cat

books.google.cat

docs.google.cat

  • US Patent 2,080,100[Enllaç no actiu]. Gustav Tauschek, Priority date August 2, 1932, subsequent filed as German Patent DE643803, "Elektromagnetischer Speicher für Zahlen und andere Angaben, besonders für Buchführungseinrichtungen" (Electromagnetic memory for numbers and other information, especially for accounting institutions).

si.edu

americanhistory.si.edu

stanford.edu

plato.stanford.edu

uni-klu.ac.at

cs-exhibitions.uni-klu.ac.at

  • «Magnetic drum». Virtual Exhibitions in Informatics. Universität Klagenfurt. Arxivat de l'original el 2006-06-21. [Consulta: 21 agost 2011].

web.archive.org

  • «Magnetic drum». Virtual Exhibitions in Informatics. Universität Klagenfurt. Arxivat de l'original el 2006-06-21. [Consulta: 21 agost 2011].