Dispositivo de entretenimento com tubo de raios catódicos (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Dispositivo de entretenimento com tubo de raios catódicos" in Portuguese language version.

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  • US patente 2455992, Goldsmith Jr., Thomas T. & Mann, Estle Ray, "Cathode Ray Tube Amusement Device", emitido em 14 de dezembro de 1948 

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