(under the class definition) Subject matter wherein electricity is applied to the medium for recording a phenomenon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
74+, for magnetos:graphic recorders.
SEE OR SEARCH CLASS
118, Coating Apparatus, appropriate subclasses, especially
620+, for a coating device including means to apply electrical and/or radiant energy to work material or coating
material, and see (2) Note of the class definition.
178, Telegraphy, 62, for chemical and electrolytic telegraph recorders.
219, Electric Heating,
384, for perforating by electric spark.
242, Winding, Tensioning, or Guiding,
210+, for winding and unwinding devices for apparatus for processing web material to bear machine-utilizable information representations.
330, Amplifiers, appropriate subclasses for the various types of amplifiers and amplifier systems,
308, for transistor amplifiers having an atomic particles or radiant energy impinging on a semiconductor, and subclass 59 for amplifier systems having light controlled or activated device.
347, Incremental Printing of Symbolic Information,
111+, for electric marking apparatus and processes.
358, Facsimile,
906, 908 for recorders combined with facsimile systems.
360, Dynamic Magnetic Information Storage or Retrieval, for the magnetic recording of nonvisible information; e.g., audio, video, digital information. 386, Television Signal Processing for Dynamic Recording or Reproducing,
1+, and 46+ for color and black and white television signal recording.
399, Electrophotography,
9+, for diagnostics, subclasses 38+ for controls, subclasses 130+ for image formation, subclasses 168+ for charging, subclasses 177+ for exposure, subclasses 222+ for development, subclasses 297+ for transfer, subclasses 320+ for fixing, subclasses 343+ for cleaning, and subclasses 361+ for document handling.
427, Coating Processes, for methods of development of the latent image.
430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,
25+, for the chemical process and material of electroimagery and magnetoimagery.
