| 700 / | HD | DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS |
| 90 | DD | SPECIFIC APPLICATION, APPARATUS OR PROCESS {16} |
| 95 | DD | .~ Product assembly or manufacturing {7} |
| 117 | DD | .~.~ Particular manufactured product or operation {11} |
| 118 | DD | .~.~.~ Three-dimensional product forming {1} |
| 119 | | .~.~.~.~ Rapid prototyping (e.g., layer-by-layer, material deposition) {1} |
| 120 | DD | .~.~.~.~.~> Stereolithography |