| | CLASS NOTES |
| 5 | DF | POLYPHASE {2} |
| 15 | DF | WITH COIL WINDING AND/OR UNWINDING |
| 20 | DF | WITH DEFORMABLE OR DISTORTABLE COIL AND/OR CORE |
| 30 | DF | WITH CONDITION-RESPONSIVE INDUCTANCE ADJUSTING MEANS (E.G., BY ELECTROMAGNET) |
| 40 | DF | ADJUSTABLE BY MAGNETIC FORCE BETWEEN RELATIVELY MOVABLE PARTS OF THE INDUCTOR {1} |
| 45 | DF | WITH MOVABLE ELEMENT POSITION INDICATOR |
| 55 | DF | WITH TEMPERATURE MODIFIER {6} |
| 65 | DF | WITH MOUNTING OR SUPPORTING MEANS (E.G., BASE) {3} |
| 69 | DF | WITH COIL CAPACITANCE MODIFYING MEANS {1} |
| 73 | DF | WITH CLOSED COIL OR CONDUCTOR MEMBER {1} |
| 82 | DF | COIL FORMS PROTECTIVE CASING |
| 83 | DF | CORE FORMS CASING |
| 84 R | DF | WITH ELECTRIC AND/OR MAGNETIC SHIELDING MEANS {3} |
| 90 | DF | WITH OUTER CASING OR HOUSING {4} |
| 100 | DF | WITH VIBRATION CONTROL |
| 105 | DF | COMBINED {1} |
| 110 | DF | WITH PERMANENT MAGNET |
| 115 | DF | RELATIVELY MOVABLE COILS {5} |
| 130 | DF | RELATIVELY MOVABLE CORE AND COIL {3} |
| 137 | DF | WITH MEANS TO CHANGE COIL LENGTH OR CONNECTIONS {8} |
| 155 | DF | INDUCTIVE REGULATORS WITH NO RELATIVELY MOVING PARTS {1} |
| 170 | DF | THREE OR MORE WINDINGS {1} |
| 172 | DF | COIL TURN LINKS PORTION OF CORE ACROSS SECTION (E.G., FRACTIONAL TURN) |
| 173 | DF | INTERLINKED COILS OR WINDINGS (E.G., CURRENT TRANSFORMER) {1} |
| 175 | DF | CORE SURROUNDING LINEAR CONDUCTOR {1} |
| 177 | DF | WITH COIL OR MAGNETIC MATERIAL |
| 178 | DF | WITH CLOSED CORE INTERRUPTED BY AN AIR GAP |
| 179 | DF | COILS WITH TEMPERATURE COMPENSATING MEANS |
| 180 | DF | WINDING FORMED OF PLURAL COILS (SERIES OR PARALLEL) {4} |
| 186 | DF | COIL FORMED OF PARALLEL CONNECTED CONDUCTORS {1} |
| 188 | DF | TWO WINDINGS WITH MUTUALLY CROSSED WINDING TURNS |
| 189 | DF | COIL WITH CROSSED TURNS {2} |
| 192 | DF | WINDING WITH TERMINALS, TAPS, OR COIL CONDUCTOR END ANCHORING MEANS |
| 195 | DF | COIL SUPPORTED WITHIN GROOVED OR HOLLOW COIL CONDUCTOR OF ANOTHER COIL |
| 196 | DF | WITH SUPPORTING AND/OR SPACING MEANS BETWEEN COIL AND CORE {2} |
| 199 | DF | COIL OR COIL TURN SUPPORTS OR SPACERS {5} |
| 209 | DF | COIL WRAPPER ON BINDER |
| 210 | DF | WITH CORE CLAMPS, WEDGES OR FASTENERS |
| 211 | DF | CONCENTRIC OR NESTED CORE ELEMENTS |
| 212 | DF | PLURAL PART CORE |
| 213 | DF | WOUND CORE |
| 214 | DF | MULTIPLE MAGNETIC PATHS {1} |
| 216 | DF | CORE JOINT STRUCTURE {1} |
| 218 | DF | MAGNETIC ORIENTATION (I.E., DIRECTIONALLY PRESTRESSED CORE MATERIAL) |
| 219 | DF | CORE INSULATION (E.G., BETWEEN CORE PARTS) |
| 220 | DF | TWO WINDINGS |
| 221 | DF | COIL AND CORE |
| 222 | DF | WINDINGS {2} |
| 225 | DF | COILS OF SPECIAL CONFIGURATION {7} |
| 233 | DF | CORE (E.G., COMPRESSED POWDER) {1} |
| | ****************************** |
| | DIGESTS |
| | ****************************** |
| DIG 1 | DF | Superconductive |
| DIG 2 | DF | Separable |
