ALEXANDRIA, Va., Nov. 11 -- United States Patent no. D1,101,906, issued on Nov. 11, was assigned to Shanghai Vision Mechanical Joint Co. Ltd. (Shanghai).
"Quick-fitting pipe coupler" was invented by Zhigang Lu (Shanghai), Zhibing Zhai (Shanghai) and Xubin Lu (Shanghai).
The patent was filed on Aug. 29, 2023, under Application No. D/901,064.
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