Iconoscopi (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Iconoscopi" in Catalan language version.

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1web.archive.org

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google.cat

Method of and apparatus for producing images of objects, US patent #2.021.907, filed November 13, 1931, patent issued 1935.(anglès)
Television System^{[Enllaç no actiu]}, US patent #2.141.059, filed December 29, 1923, patent issued 1938.(anglès)

uspto.gov

«MPEP 2300.01 Introduction - 2300 Interference Proceedings en anglès ». Arxivat de l'original el 2008-12-01. [Consulta: 22 juny 2015].

web.archive.org

«MPEP 2300.01 Introduction - 2300 Interference Proceedings en anglès ». Arxivat de l'original el 2008-12-01. [Consulta: 22 juny 2015].