(under the class definition) Processes wherein the base or the coating is disclosed as having magnetic properties.
(1) Note. An iron base, for example, which has magnetic properties is only classified here if the patent states the base has magnetic properties.
(2) Note. The term magnetic in these subclasses is intended to include magnetizable material, i.e., material to which the property of attraction for iron may be imparted as by stimulus of a magnetic field.
(3) Note. Where the magnetic article is part of an electrical article or includes a conductive coating, for instance an insulated core for use in a transformer see
subclasses 58+ above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58+, for processes of coating wherein a product is produced which conducts electricity. 599, for processes of forming magnetic recording devices involving use of a magnetic field.
SEE OR SEARCH CLASS
148, Metal Treatment, particularly
100+, for processes of intentionally modifying the magnetic properties of metal.
520, Synthetic Resins or Natural Rubbers, appropriate subclasses, particularly Class 523,
181, for a composition for magnetic purposes but which is devoid of magnetic material or to processes of preparing said composition.
