ALEXANDRIA, Va., June 16 -- United States Patent no. D1,075,902, issued on May 20, was assigned to CASIO KEISANKI K.K. (Tokyo).
"Electronic calculator" was invented by Shunsuke Oka (Tokyo), Hitomi Wagatsuma (Chiba, Japan) and Susumu Kamiya (Kanagawa, Japan).
The patent was filed on Sept. 15, 2022, under Application No. D/853,460.
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