Nikola Tesla U.S. Patent 725,605 - System of Signaling Patent Wrapper Page 61

J C ) ) [ 2 be regarded as absolute privacy, as, for example, by arranging the apparatus to vary automatically the order of succession of the impulses transmitted, or the mode in which they are made to co-operate upon the receiver, constantly during the transmission of the message. To illustrate, suppose that in an apparatus of the kind shown in figure 1, a disk, as D, is made to bring into action in any desired way transmitting circuits in groups of two or more, and that at the receiving station. there are corresponding circuits which bring the receiver into action, no matter which of the transmitting circuits are energized. It is now clear that it would be practically beyond. human power to intercept a message, since the number of groupments and their order of succession may be almost infinitely varied. We trust that the above explanation will satisfy the examiner. If it does not, we request that the interference be not delayed, but that this case be held after judgment of priority for whatever revision or restriction may be necessary, in accordance with the provisions of Rule 96. Respectfully submitted, Kerr, Page +leo coper. [This page retyped from microfilm for better readability - Ed. 675