| 228 / | HD | METAL FUSION BONDING | 
| 47.1 | DF | WITH MEANS TO HANDLE WORK OR PRODUCT {4} | 
| 49.1 |  | .~ Including means to orient work or position work portion relative to another work portion {3} | 
| 49.2 | DF | .~.~> Means to rotate work and to position work about a different axis | 
| 49.3 | DF | .~.~> Pipe joint aligner | 
| 49.4 | DF | .~.~> Sheet aligner |