ALEXANDRIA, Va., June 5 -- United States Patent no. D1,071,366, issued on April 15, was assigned to TECMEN ELECTRONICS Co. LTD (Nanjing, China).
"Hearing protector" was invented by Ziqian Wu (Nanjing, China).
The patent was filed on Dec. 6, 2021, under Application No. D/818,050.
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