Callsign: KO4TRE Class: Technician Name: Rogerson IV, Marvin C Address: 4434 4th St NW City: Rochester State: MN Zipcode: 55901 Status: Active Grant Date: 10/04/2021 Expires: 10/04/2031 Uls: FCC Info
Ham call sign KO4TRE in Rochester, MN
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