June 12, 1934                                                  1,962,565 UNITED STATES PATENT OFFICE 1,962,565 APPARATUS WITH CIRCUITS OSCILLATING UNDER MULTIPLE WAVE LENGTHS Georges Lakhovsky, Paris, France Application November 13, 1931, Serial No. 574,907 In France Mav 2, 1931 7 Claims. (Cl. 250-33) The present invention has for its object an apparatus capable of sending out simultaneously different wave lengths so … Continue reading Lakhovsky’s 1934 MWO Patent