 Ultra (UK) |
 Ultra (UK) |
 Ultraméric |
 Uméca |
 Unic-Radio |
 Unic-Radio |
 Union Radio |
 Univers |
 Universal |
 Union Télévision |
 Union Télévision |
 Univox |
 Unitra |
 Unitra |
 United |
 Unda Radio |
 Unda Radio |
 Unda Radio |
 Unda Radio |
 Unda Radio |
 Unda Radio |
 Unda Radio |
 Ultra (BE) |
 UPEL |
 Uher |
 Union-Ring |
 Uniden |
 Unico |
 Utah |
 Uranya |
 Univers Radio |
 Unitron |
 Unisef |
 Unisef |
 Unaohm |
 Unaohm |
 Union Electric |
 Union T.S.F. |
 Ultralinear |