ALEXANDRIA, Va., Dec. 2 -- United States Patent no. D1,104,376, issued on Dec. 2.
"Bark training collar device" was invented by Zhangli Lan (Shenzhen, China), Yukun Yang (Shenzhen, China), Tongxin Guan (Shenzhen, China) and Sheng Lan (Shenzhen, China).
The patent was filed on March 20, 2024, under Application No. D/933,629.
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