ALEXANDRIA, Va., Dec. 23 -- United States Patent no. D1,107,008, issued on Dec. 23.
"Loudspeaker" was invented by Kiyosei Shibata (Hyogo, Japan) and Katsuhiko Taira (Osaka, Japan).
The patent was filed on Nov. 30, 2023, under Application No. D/523,161.
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