ALEXANDRIA, Va., Sept. 23 -- United States Patent no. D1,094,456, issued on Sept. 23, was assigned to Dongguan QuanDingSheng Technology Co. Ltd. (Dongguan, China).
"Karaoke machine" was invented by Xiaohua Lou (Dongguan, China).
The patent was filed on Oct. 28, 2024, under Application No. D/970,238.
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