(under subclass 339.25) Subject matter comprising (a) a device which converts electrical energy into mechanical energy which tends to assume a predetermined angular position in response to being continuously energized, and indexes in discreet angular increments of essentially uniform magnitude as a function of electrical pulse inputs, and (b) wherein the member which is turned about its axis is driven by the device.
SEE OR SEARCH CLASS
310, Electrical Generator or Motor Structure, appropriate subclasses, especially
49+, for a specific rotary step-by-step motor of general utility, per se.