| 1/00 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) |
| 1/02 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) Control of position or course in two dimensions |
| 1/03 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) Control of position or course in two dimensions using near-field transmission systems, e.g. inductive-loop type |
| 1/04 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) Control of altitude or depth |
| 1/06 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) Control of altitude or depth Rate of change of altitude or depth |
| 1/08 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) Control of attitude, i.e. control of roll, pitch, or yaw |
| 1/10 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) Simultaneous control of position or course in three dimensions (G05D 1/12 takes precedence) |
| 1/12 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) Target-seeking control |
| 3/00 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) |
| 3/10 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) without using feedback |
| 3/12 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) using feedback |
| 3/14 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) using feedback using an analogue comparing device |
| 3/16 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) using feedback using an analogue comparing device whose output amplitude can only take a number of discrete values (G05D 3/18 takes precedence) |
| 3/18 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) using feedback using an analogue comparing device delivering a series of pulses |
| 3/20 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) using feedback using a digital comparing device |
| 5/00 | Control of dimensions of material |
| 5/02 | Control of dimensions of material of thickness, e.g. of rolled material |
| 5/03 | Control of dimensions of material of thickness, e.g. of rolled material characterised by the use of electric means |
| 5/04 | Control of dimensions of material of the size of items, e.g. of particles |
| 5/06 | Control of dimensions of material of the size of items, e.g. of particles characterised by the use of electric means |