US PATENT SUBCLASS 700 / 85
.~.~ Positional (e.g., joystick)


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700 /   HD   DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS

1  DD  GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS {15}
83  DD  .~ Having operator control interface (e.g., control/display console) {2}
85.~.~ Positional (e.g., joystick)