US PATENT SUBCLASS 340 / 987
.~ Rudder position indicator


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340 /   HD   COMMUNICATIONS: ELECTRICAL

984  DF  WATERCRAFT ALARM OR INDICATING SYSTEMS {3}
987.~ Rudder position indicator


DEFINITION

Classification: 340/987

Rudder position indicator:

(under subclass 984) Subject matter having an indicator showing the position of the movable element hinged at the stern of the boat and used for steering.