ALEXANDRIA, Va., Oct. 21 -- United States Patent no. D1,097,901, issued on Oct. 14, was assigned to WHILL Inc. (Tokyo).
"Chassis of an electric wheelchair" was invented by Hiroyuki Tsukamoto (Tokyo), Masahiro Toriyama (Tokyo) and Satoshi Sugie (Tokyo).
The patent was filed on July 20, 2022, under Application No. D/846,912.
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