ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,371, issued on Aug. 25, was assigned to Shenzhen Xin Niu E-commerce Co. Ltd (Shenzhen, China).
"Calculator with handwriting pad" was invented by Yingbin Zhang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A calculator with a handwriting pad, includes a main body and a handwriting pen for being operated by a user, the handwriting pen is detachably arranged on the main body; the main body is provided with a control module, a button module group for being operated by the user, a display electrically connected to the control module, a liquid crystal display (LCD) screen, and a clear switch. The control module performs a mathematical op...