ALEXANDRIA, Va., Feb. 5 -- United States Patent no. D1,060,544, issued on Feb. 4, was assigned to GD IND Corp. (Incheon, South Korea).
"Spring assembly as a part of a hand grip exerciser" was invented by Tae Jin An (Incheon, South Korea).
The patent was filed on June 13, 2022, under Application No. D/864,694.
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