ALEXANDRIA, Va., Dec. 2 -- United States Patent no. D1,103,815, issued on Dec. 2, was assigned to Zhuhai Murui Technology Co. Ltd. (Zhuhai, China).
"Internal unit for wireless doorbell" was invented by Junhua Song (Zhuhai, China) and Junming Song (Zhuhai, China).
The patent was filed on April 16, 2024, under Application No. D/937,581.
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