(under subclass 56) Discharge devices, having structurally combined therewith an electric transformer.
(1) Note. The transformer may be designed to be connected to the cathode heater or cathode circuit, merely to supply current to heat the cathode, or it may be connected to any of the other electrodes of the discharge device. The patent need not specify the connection of the transformer for classification in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70, for other load devices having a transformer structurally combined with the load device.
SEE OR SEARCH CLASS
336, Inductor Devices, appropriate subclasses for the structure of transformers and inductive reactors. See especially 105+, and the notes thereto for transformers and inductive reactors combined with other structure.
378, X-Ray or Gamma Ray Systems or Devices,
91+, and 119+ for combined X-ray tube and transformer units.
