ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,998, issued on March 25.
"Connecting rod piece" was invented by Yong Song (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A connecting rod piece includes a hollow first connecting rod unit, a connecting device, a hollow second connecting rod unit, a first locking member and a second locking member. A side wall of the first connecting rod unit is provided with a first mounting slot. The connecting device has a first end and a second end. A side wall of the second connecting rod unit is provided with a second mounting slot. The first locking member detachably locks the first end of the connecting device to the first connecting rod uni...