ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,149, issued on Oct. 6, was assigned to VITRUVIAN INVESTMENTS PTY LTD. (Perth, Australia).
"Fitness training apparatus and system" was invented by Jonathan Charles Gregory (Nedlands, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fitness training apparatus including a base having an upper surface configured to support a user during a workout with the fitness training apparatus, a first retractable line extendable by the user upward from the base against a variable load from a first load generator and retractable to wind up on a first spool or drum, and a second retractable line extendable by the user upward from the base against a variable...