US PATENT SUBCLASS 116 / 19
.~ Ship's course

Current as of: June, 1999
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116 /   HD   SIGNALS AND INDICATORS

18  DF  CODE SIGNALING {2}
19.~ Ship's course

DEFINITION

Classification: 116/19

(under subclass 18) Devices include mechanically-operated means, sometimes automatically controlled by the position of the ship's rudder or the direction of motion of the ship and sometimes manually controlled, by which the ship's course is indicated by code-signals to other vessels.