ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,197, issued on May 12, was assigned to Yongzhou Noyafa Electronic Co. Ltd. (Yongzhou, China).
"Underground cable path tester" was invented by Ming Lei (Yongzhou, China) and Jianping Zhang (Yongzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present disclosure is an underground cable path tester, in which a first signal processing device is connected to a data port of a primary unit central control module, and a second signal processing device is connected to an output port of the first signal processing device; regarding the first signal processing device, data ports of a signal receiving module, a signal amplifying module...