ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,510, issued on Dec. 2.

"Indexing router base" was invented by Henry Wang (Winter Springs, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An indexing router base (100), includes a main body (102). The main body includes: an upper surface (110) and a lower surface (112); a central opening (114) through the main body; a raised guide ring (116) that protrudes upward from the upper surface and that surrounds the central opening; and a linear cleat (118) that protrudes downward from the lower surface, that is set apart from a center (114C) of the central opening, and that defines a long axis (118L) that is perpendicular to a radial line (124) originat...