U.S. federal trademark · Serial No. 75300306 · Reg. No. 914778
gyrocompasses, receiver apparatus, gyrocompasses with remote transmission, and apparatus for use in connection with gyrocompasses, namely, direction diopters, course and rudder position printers, register apparatus, measuring and watching instruments with built-in gyros; control and ruling devices especially for the manual and automatic control of water vehicles, said devices being gyrocompasses for the control of ships and nautical devices of every kind
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