ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,398, issued on Nov. 18.
"Master trainer" was invented by Cyril Gerard Manula (Dallas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and devices for a master trainer for a master trainer having independent press arms with rotating pulley systems each with attached carriages that allows for the press arms and pulley systems and carriages to be adjustable to different heights in order to perform various exercises. Additionally, the master trainer is configured to be used with or without a bench with an adjustable back and seat and is configured to allow for varying exercises to be performed based on the height of the carriage system and adjustm...