ALEXANDRIA, Va., April 9 -- United States Patent no. D1,069,897, issued on April 8.
"Cartridge for laser printers" was invented by Hongjian Yang (Guangdong, China), Haifei Gong (Guangdong, China) and Zhe Shao (Guangdong, China).
The patent was filed on Dec. 28, 2022, under Application No. D/517,103.
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