ALEXANDRIA, Va., March 3 -- United States Patent no. D1,116,018, issued on March 3, was assigned to ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS Co. LTD (Zhejiang, China).
"Ball valve" was invented by Liangmei Ding (Zhejiang, China), Minghui Xu (Zhejiang, China) and Weilin Yan (Zhejiang, China).
The patent was filed on May 6, 2023, under Application No. D/891,501.
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