(under the class definition) Inductor devices comprising inductor core structure formed of concentric, nested, or telescoped core elements of magnetic material.
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83, for inductors where the core forms the casing of the device.
84+, for inductors having magnetic shielding means which may be of the concentric type.
177, for inductors having coils with coil conductors of magnetic material.
213, for wound cores. 233+, for general core structure not elsewhere provided for, particularly subclass 234 indented thereunder for laminated cores.
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310, Electrical Generator or Motor Structure,
10+, for dynamoelectric machine structure, particularly indented subclasses 14, 23+, 30, and 34+, for nonrotary type machines having concentric element core structures wherein one of the elements is a plunger armature, and subclasses 40+, appropriate subclasses, for rotary type machines with concentric type relatively rotatable core elements.
335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,
256+, for concentric core structure for plunger type armatures and subclasses 291+ for lifting, holding or tractive type magnets with diverse core elements wherein one of the elements is a plunger armature.
