(under the class definition) Subject matter including systems and process for neutralizing a magnetic field.
(1) Note. This subclass includes, for example, processes for demagnetizing the hair springs of a watch, etc.
(2) Note. Where the demagnetizing is combined with the specific features of the art environment, the search should extend to the class which relates to the art environment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149+, for systems and processes for neutralizing the magnetic field by means of an electromagnetic coil.
SEE OR SEARCH CLASS
29, Metal working, 602.1+, for processes of making permanent magnets consisting of more than merely demagnetizing and processes of making electromagnets; also consult the extensive search notes to this subclass for a compilation of related subject matter.
240, for degaussing of ships.
209, Classifying, Separating, and Assorting Solids,
8, for demagnetizing as a step preliminary to classifying, separating or assorting.
307, Electrical Transmission or Interconnection Systems,
101, for the control of remnant or residual magnetism, and subclass 104 for electromagnet and highly inductive systems.
318, Electricity: Motive Power Systems,
492, for electric motor systems having means to dissipate the magnetic energy of the electric motor.
335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, appropriate subclasses, especially
365, Static Information Storage and Retrieval, appropriate subclass for magnetic storage systems including means to demagnetize the storage medium, 185.01+, for floating gate memory storage (e.g., flash memory).
368, Horology: Time Measuring Systems or Devices,
293, for antimagnetic devices utilized in horology.