ALEXANDRIA, Va., July 21 -- United States Patent no. D1,136,147, issued on July 21, was assigned to Hangzhou Green Fire Outdoor Products Co. LTD. (Hangzhou, China).
"Furnace" was invented by Guolin Shan (Hangzhou, China).
The patent was filed on May 27, 2025, under Application No. D/005,443.
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