US Patent Issued to Hangzhou Sizone Electronic Technology on Feb. 10 for "Combined polishing and grinding device" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. D1,112,383, issued on Feb. 10, was assigned to Hangzhou Sizone Electronic Technology Inc. (Hangzhou, China).

"Combined polishing and grinding device" was invented by Xiaoyu Xu (Zhejiang, China) and Zheng Xu (Zhejiang, China).

The patent was filed on Aug. 29, 2024, under Application No. D/522,630.

*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=D1112383&OS=D1112383&RS=D1112383

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