ALEXANDRIA, Va., Aug. 26 -- United States Patent no. D1,090,487, issued on Aug. 26, was assigned to NINGBO HAISHU DI BI AUDIO Co. LTD (Zhejiang Province, China).
"Speaker box" was invented by Miao Cai (Zhejiang Province, China).
The patent was filed on Sept. 15, 2023, under Application No. D/912,290.
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