| 1/00 | Design features of general application |
| 1/02 | Design features of general application Housing (for measuring instruments in general G01D) |
| 1/04 | Design features of general application for driving the stage of lowest order (with variable ratio of drive G06M 1/38) |
| 1/06 | Design features of general application for driving the stage of lowest order (with variable ratio of drive G06M 1/38) producing continuous revolution of the stage, e.g. with gear train |
| 1/08 | Design features of general application for actuating the drive |
| 1/10 | Design features of general application for actuating the drive by electric or magnetic means |
| 1/12 | Design features of general application for actuating the drive by fluid means |
| 1/14 | Design features of general application for transferring a condition from one stage to a higher stage (with variable ratio of transfer G06M 1/38) |
| 1/16 | Design features of general application for transferring a condition from one stage to a higher stage (with variable ratio of transfer G06M 1/38) self-operating, e.g. by Geneva mechanism |
| 1/18 | Design features of general application for transferring a condition from one stage to a higher stage (with variable ratio of transfer G06M 1/38) requiring external operation, e.g. by electromagnetic force |
| 1/20 | Design features of general application for transferring a condition from one stage to a higher stage (with variable ratio of transfer G06M 1/38) specially adapted for denominations with unequal numbers in each stage, e.g. degrees and minutes of angle |
| 1/22 | Design features of general application for visual indication of the result of count on counting mechanisms, e.g. by window with magnifying lens |
| 1/24 | Design features of general application for visual indication of the result of count on counting mechanisms, e.g. by window with magnifying lens Drums; Dials; Pointers |
| 1/26 | Design features of general application for visual indication of the result of count on counting mechanisms, e.g. by window with magnifying lens Aligning means |
| 1/27 | Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum |
| 1/272 | Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using photoelectric means |
| 1/274 | Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using magnetic means; using Hall-effect devices |
| 1/276 | Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using mechanically-actuated contacts |
| 1/28 | Design features of general application for zeroising or setting to a particular value |
| 1/30 | Design features of general application for zeroising or setting to a particular value using heart-shaped or similar cams; using levers |