ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,589, issued on Sept. 15.
"Pocket hole drilling device" was invented by Pin-Feng Chang (Taichung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pocket hole drilling device includes a rack, a front sensing switch, a rear sensing switch, a buffer unit, a rotary frame, a drilling unit, and a routing unit. The front sensing switch is mounted to the rack. The rear sensing switch is mounted to the rack, and is located at one side of the front sensing switch along a front-rear direction. The buffer unit is mounted to the rack. The rotary frame is rotatably connected to the rack and is rotatable between a first position and a second position....