ALEXANDRIA, Va., Dec. 2 -- United States Patent no. D1,103,811, issued on Dec. 2.
"Smoke alarm" was invented by Shixi You (Zhejiang, China), Haibo Zhang (Zhejiang, China), Changluo Hu (Zhejiang, China) and Zhenxiao Ding (Zhejiang, China).
The patent was filed on July 17, 2024, under Application No. D/952,800.
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