(under the class definition) Subject matter having a control element which an operator physically contacts to control the transmission or generation of a coded set of pulses.
SEE OR SEARCH CLASS
178, Telegraphy,
79+, for a telegraph transmitter; subclasses 101+ for a telegraph key.
200, Electricity: Circuit Makers and Breakers, for a switch or switch actuator, absent circuitry.
250, Radiant Energy,
231, for an optical mouse. 338, Electrical Resistors, appropriate subclasses for a variable resistance input controller.
340, Communications: Electrical,
825.56, for selective communications system having a multidigit encoder.
156+, for input devices used in conjunction with a display device.
379, Telephonic Communications,
353+, particularly subclasses 368 and 369 for a manually actuated telephone signalling device (e.g., keypad or dial).
380, Cryptography,
52, for a cryptos:graphic transmitter having specified keyboard structure.
463, Amusement Devices: Games,
1+, particularly subclasses 36+, for a code generator or conversion device either combined with a game or particularly adapted to serve as an input device for an electronic game.
708, Electrical Computers: Arithmetic Processing and Calculating, 142+, for a keyboard input for a digital calculator.
