ALEXANDRIA, Va., Sept. 17 -- United States Patent no. D1,093,330, issued on Sept. 16, was assigned to Dongguan Lucky Sonics Co. Ltd (Dongguan, China).
"Intercom box" was invented by Jingang Liu (Guangdong, China).
The patent was filed on Jan. 11, 2024, under Application No. D/908,193.
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