| 1/00 | Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric |
| 1/02 | Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges |
| 1/04 | Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric Electrodes specially adapted therefor or their manufacture (B23H 9/00 takes precedence) |
| 1/06 | Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric Electrodes specially adapted therefor or their manufacture (B23H 9/00 takes precedence) Electrode material |
| 1/08 | Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric Working media |
| 1/10 | Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric Supply or regeneration of working media |
| 3/00 | Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte |
| 3/02 | Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits |
| 3/04 | Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte Electrodes specially adapted therefor or their manufacture (B23H 9/00 takes precedence) |
| 3/06 | Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte Electrodes specially adapted therefor or their manufacture (B23H 9/00 takes precedence) Electrode material |
| 3/08 | Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte Working media |
| 3/10 | Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte Supply or regeneration of working media |
| 5/00 | Combined machining |
| 5/02 | Combined machining Electrical discharge machining combined with electrochemical machining |
| 5/04 | Combined machining Electrical discharge machining combined with mechanical working |
| 5/06 | Combined machining Electrochemical machining combined with mechanical working, e.g. grinding or honing |
| 5/08 | Combined machining Electrochemical machining combined with mechanical working, e.g. grinding or honing Electrolytic grinding |
| 5/10 | Combined machining Electrodes specially adapted therefor or their manufacture (B23H 1/04, B23H 3/04 take precedence) |
| 5/12 | Combined machining Working media |
| 5/14 | Combined machining Supply or regeneration of working media |