US PATENT SUBCLASS 116 / 18
CODE SIGNALING
Current as of: June, 1999
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DEFINITION
Classification: 116/18
(under the class definition) Devices limited to the transmission of code messages by means of visual or audible indications.
(1) Note. This subclass includes signaling means on lighthouses, buoys, vessels, etc., for sending out signals in the form of codes as distinguished from mere sounds or light-flashes regularly repeated.
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22, for simple sound or light signals, repeated periodically.
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375, Pulse or Digital Communications, appropriate subclasses for electric code signalling.
