Zenith Radio Corporation’s Radionic Hearing Aid – Than You, America, for your Tremendous Endorsement of Zenith’s Crusade to Lower the Cost of Hearing (1944)
E. H. Scott Radio Laboratorie’s Radio – A Bassoon is funny to look at, hard to play... and very very difficult to reproduce by radio... yet it comes to you with uncanny exactness on a Scott (1943)
P.R. Mallory & Co.’s Mallory Inductuner – You Get The Picture As the Producer Sees It... When your television receiver is equipped with the Mallory Inductuner (1949)