ALEXANDRIA, Va., June 19 -- United States Patent no. D1,079,775, issued on June 17, was assigned to Yueqing Dagui Tools Co. Ltd. (Wenzhou, China).
"Wall hole saw quick coupler" was invented by Zaiyong Zhuang (Yueqing, China).
The patent was filed on Dec. 3, 2024, under Application No. D/975,989.
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