Wide Frequency Range Underground Transmitter
Copyright © Targeted News Service 2024
2024-12-03
ALEXANDRIA, Virginia, Dec. 3 -- UNDERGROUND MAGNETICS, INC., Johnston, Iowa has been assigned a patent (No. US 12158069 B2, initially filed Sept. 15, 2023) developed by Yuriy Khapochkin, Johnston, Iowa, and Dmitry Fedorov, Ankeny, Iowa, for "Wide frequency range underground transmitter." . . .