.~.~ With common power supply or current control means
DEFINITION
Classification: 219/477
(under subclass 476) Subject matter wherein the plurality of separate heating devices each depends, for its activation and current supply, upon a common source of power or wherein the current traversing each of the devices is regulated or controlled by a common means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
483+, for a plurality of heater resistance elements under the class definition deriving power from, or being controlled by, a single means and where the power supply or control means is claimed specifically and in detail with the resistance elements broadly claimed.
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnection Systems,
11+, for power supply or control system in general for supplying plural loads.
