(under subclass 296) Subject matter including significant details of the magnetic coil structure or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213+, for electron or ion beam deflecting type coil
structures.
250, for alternating current electromagnet and armature with particular coil construction or mounting means.
282, for electromagnets with significant magnetic coil structure or material.
SEE OR SEARCH CLASS 336, Inductor Devices, appropriate subclasses for coils of various structural shape or configuration or coils made of various types of materials.