ALEXANDRIA, Va., Nov. 18 -- United States Patent no. D1,102,266, issued on Nov. 18.
"Piercing nut" was invented by Shota Hori (Kishiwada, Japan), Rikiya Nishimura (Kishiwada, Japan) and Daisuke Naka (Kishiwada, Japan).
The patent was filed on Jan. 30, 2023, under Application No. D/519,860.
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