There are United Engine models listed in Vintage Radio by Morgan McMahon. Starting in 1925 with models like Lan Sing. Later United Lan Sing. Around 1928 model numbers 90-28, 160-28, 225-28. (28 being the year) By 1930 numbers like 50-301, 50-302 and 50-303. (In this case the 30x was probably the year.)
No other information is given.
Norm
:Purchased a "United Engine Co." model 30 console radio and would like info on it but it seems there is very little out there to be had. Any help would be appreciated.