US Patent Issued to Yueqing Tianzhongtian Hardware Tools on Aug. 18 for "Hole saw" (Chinese Inventor)

ALEXANDRIA, Va., Aug. 18 -- United States Patent no. D1,141,823, issued on Aug. 18, was assigned to Yueqing Tianzhongtian Hardware Tools Co. Ltd. (Yueqing, China).

"Hole saw" was invented by Xiwen Shi (Yueqing, China).

The patent was filed on May 13, 2025, under Application No. D/003,465.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=D1141823&OS=D1141823&RS=D1141823

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