About 1 Trademarks found that are owned by Lowell Digisonde International Llc

portable analysis instruments for ionospheric measurements and research; radio echo sounders; portable sounders for making measurements of the ionosphere; analysis instruments to determine radio signal propagation in support of radio communications or radio surveillance operations; and instruments for automatically collecting and analyzing ionospheric measurements for the purpose of selecting optimum operating frequencies for obliquely propagated communication or radar propagation paths