(under subclass 479) Apparatus which includes a manual means which modifies the action of the valve responsive to the flow of fluid.
(1) Note. This does not include devices in which the manual or external means are mere setting or adjusting means. See section 5, of the class definition for search notes on manual actuation, resetting and adjustment of valves and valve actuators.
(2) Note. See the class definition, section 3 for search notes on plural actuators including at least one automatic actuator and section 4, for plural valves and plural
