ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,944, issued on Nov. 4, was assigned to NORTHWEST INSTRUMENT INC. (Dover, N.J.).
"Device for calibrating laser level" was invented by Xin Shi (Shanghai) and David Xing (Dover, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a device for calibrating a laser level, including a base platform configured to support the laser level that is to be mounted at a first position of the base platform, a laser detector arranged at a second position of the base platform and configured to receive a laser, and an optical path extension device arranged at a third position between the laser level and the laser detector and configure...