What year was the HP Envy 7640 e-All-in-One series released or copyrighted?
The HP Envy 7640 e-All-in-One series carries a copyright year of 2014 by Hewlett-Packard Development Company, L.P. This is noted on the copyright line of the manual. (Page 2)
From the official HP Envy 7640 E All-in-One Printer manual, page 2
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