Revision history of "Category:B64C"

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  • curprev 02:56, 19 March 2024‎ Wikipatents talk contribs‎ 3,845 bytes +3,845‎ Created page with "The International Patent Classification (IPC) code B64C pertains to the specific field of aeroplanes; helicopters. This classification covers a wide range of inventions relate..."
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