ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,866, issued on Jan. 13.
"Socket holding frame" was invented by Jui Chien Kao (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A socket holding frame has a track base and a socket holding mount. The track base has a positioning panel having multiple round locking holes arranged at spaced interval and aligned in a straight line and two side racks respectively located at two opposite sides of the positioning panel. Each side rack has a sliding channel. The socket holding mount has a round flange extending into the sliding channels of the two side racks, a holding portion formed from a top of the flange, and a positioning protrusion exte...