ALEXANDRIA, Va., June 25 -- United States Patent no. D1,080,739, issued on June 24, was assigned to Gravity Brands Ltd. (Harlow, Great Britain).
"Dart shaft" was invented by Garry Plummer (Harlow, Great Britain) and Re'em Hanneman (Harlow, Great Britain).
The patent was filed on Dec. 16, 2022, under Application No. D/863,198.
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