| 5/00 | Setting gems or the like on metal parts, e.g. diamonds on tools |
| 6/00 | Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D 1/00, B21D 3/00; repairing defective or damaged objects by casting techniques B22D 19/1; procedures or apparatus covered by a single other subclass, see the relevant subclass) |
| 6/02 | Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D 1/00, B21D 3/00; repairing defective or damaged objects by casting techniques B22D 19/1; procedures or apparatus covered by a single other subclass, see the relevant subclass) Pistons or cylinders |
| 6/04 | Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D 1/00, B21D 3/00; repairing defective or damaged objects by casting techniques B22D 19/1; procedures or apparatus covered by a single other subclass, see the relevant subclass) Repairing fractures or cracked metal parts or products, e.g. castings |
| 9/00 | Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings (treatment covered by a single other subclass, see the relevant subclass, e.g. B24C, C21D 7/00, C22F 1/00); Features of such surfaces not otherwise provided for, their treatment being unspecified |
| 9/02 | Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings (treatment covered by a single other subclass, see the relevant subclass, e.g. B24C, C21D 7/00, C22F 1/00); Features of such surfaces not otherwise provided for, their treatment being unspecified Treating or finishing by applying pressure, e.g. knurling (B23P 9/04 takes precedence) |
| 9/04 | Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings (treatment covered by a single other subclass, see the relevant subclass, e.g. B24C, C21D 7/00, C22F 1/00); Features of such surfaces not otherwise provided for, their treatment being unspecified Treating or finishing by hammering or applying repeated pressure |
| 11/00 | Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for (connecting sheet metal or metal tubes, rods or profiles B21D 39/00; riveting B21J; soldering, unsoldering, welding B23K; hand tools for connecting wire or strip B25B 25/00; connecting metal parts by adhesives F16B 11/00) |
| 11/02 | Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for (connecting sheet metal or metal tubes, rods or profiles B21D 39/00; riveting B21J; soldering, unsoldering, welding B23K; hand tools for connecting wire or strip B25B 25/00; connecting metal parts by adhesives F16B 11/00) by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits |
| 13/00 | Making metal objects by operations essentially involving machining but not covered by a single other subclass (making specific objects B23P 15/00) |
| 13/02 | Making metal objects by operations essentially involving machining but not covered by a single other subclass (making specific objects B23P 15/00) in which only the machining operations are important |
| 13/04 | Making metal objects by operations essentially involving machining but not covered by a single other subclass (making specific objects B23P 15/00) involving slicing of profiled material |
| 15/00 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass |
| 15/02 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece |
| 15/04 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces |
| 15/06 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass piston rings from one piece |
| 15/08 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass piston rings from several pieces |
| 15/10 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons |
| 15/12 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gratings |
| 15/14 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels |