Nikola Tesla U.S. Patent 723,188 - Method of Signaling Patent Wrapper Page 36

Tes la 64,522. point, substantially as set forth. 3. In a system of telegraphy, where in messages are sent by the use of a plurality of electrically generated impulses of different periodicities and in a predetermined order of succession, the method of ascertaining (visually or audibly) at any particular station, the particular signal sent to that station, which consists in the selection to form a signal of certain transmitted impulses of different periodicities and of a predetermined order of succession to the exclusion of all others, subst ant ially as set for th. 4. An improvement in the art of transmitting signals electrically, which consists in operating or controlling an indicating mechanism by a series or group of electrically generated impulses of differing periodicities and of a predetermined order of succession, substantially as set forth. 5. In a wireless telegraph system adapted or designed for the transmission of a message to any one of two or more receiving stations, the method of transmitting the message with reference to the intelligible recei thereof at the desired station, which method consists in the transmission of electro magnetic waves or impulses of different periodicities in varying order of transmittal by a separate order or grouping of transmit tal for each receiving station, substantially as set forth. E.C. Men Examiner, Div. 16. 593