Nikola Tesla U.S. Patent 723,188 - Method of Signaling Patent Wrapper Page 15

572 Eub. ово circuits a local circuit, as set forth. 4. The method of signalling which consists in producing a plurality of series of waves or impulses, varying the character or order of succession of the several series, exciting by the waves or impulses of each series one of a plurality of receiving circuits and controlling by such circuits a local circuit, as set forth. -Nikole Tesle Witnesses: M. Lauren Spea Bury auen. Miller -11