ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,793, issued on March 18.

"Centering vice" was invented by Chang-Yi Lin (Taichung, Taiwan) and Chang-Chih Lin (Taichung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A centering vice is provided, including: a base, a clamp assembly and an adjusting assembly. The base includes a sliding groove extending in a first direction and a first abutting portion. The clamp assembly includes a first jaw portion and a second jaw portion. The adjusting assembly includes a threaded rod, a positioning member and two adjusting members. The threaded rod includes a first threaded segment, a second threaded segment and a positioning portion. The positioning me...