Revision history of "Category:H04N19/176"

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  • curprev 14:23, 30 November 2023‎ Wikipatents talk contribs‎ 1,343 bytes +1,343‎ Created page with "* '''Section H''': Electricity * '''Class H04''': Electric Communication Technique * '''Subclass H04N''': Pictorial Communication, e.g., Television * '''Main Group H04N19/00''..."
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