By what name was the city, in which the company Prior Radiofabrikk was located, known from 1877 until 1925 ?
Prior Radiofabrikk Prior Radiofabrikk was a radio manufacturing company in Oslo, Norway.
Izhevsk Radio Plant Izhevsk Radio Plant (Russian: Ижевский радиозавод ) is a company based in Izhevsk, Russia and established in 1958.