ALEXANDRIA, Va., June 6 -- United States Patent no. D1,072,390, issued on April 22, was assigned to CHANGZHOU CANBO TRAVEL PRODUCTS Co. LTD. (Changzhou, China).
"Pet climbing ladder" was invented by Huafeng Yun (Changzhou, China).
The patent was filed on Jan. 29, 2024, under Application No. D/926,066.
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