72 / | HD | METAL DEFORMING |
184 | DF | BY USE OF "FLYING TOOL" ENGAGING MOVING WORK {4} |
190 | DF | .~ Including orbitally-moving tool-face {1} |
191 | DF | .~.~ Moving in circular orbit {6} |
192 | .~.~.~ With cooperating rectilinearly-moving tool (e.g., "anvil") {1} | |
193 | DF | .~.~.~.~> Comprising tool inside hollow work |