| 700 / | HD | DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS |
| 90 | DD | SPECIFIC APPLICATION, APPARATUS OR PROCESS {16} |
| 213 | DD | .~ Article handling {5} |
| 228 | DD | .~.~ Having particular transport between article handling stations {2} |
| 229 | | .~.~.~ Transport position identification |