ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,155, issued on Feb. 24, was assigned to Wonderland Switzerland AG (Steinhausen, Switzerland).
"Child stroller" was invented by Shoufeng Hu (Steinhausen, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A child stroller is provided in the present disclosure. A frame of the child stroller includes a first bracket and a second bracket that are foldable. The first bracket is provided with an engaging member, the engaging member includes a first engaging portion and a second engaging portion, and the first engaging portion is configured to be detachably engaged with a child carrier. The second bracket is provided with a locking portion, and whe...