241 / | HD | SOLID MATERIAL COMMINUTION OR DISINTEGRATION |
* | DD | APPARATUS {41} |
83 | DF | .~ Comminuting surface provided with openings to permit discharge of material {4} |
91 | DF | .~.~ Rotating comminuting surface having openings {2} |
92 | .~.~.~ Radial comminuting face |