366 / | HD | AGITATING |
69 | DF | RUBBER OR HEAVY PLASTIC WORKING {14} |
79 | DF | .~ Stirrer is through-pass screw conveyor {7} |
83 | DF | .~.~ Plural screw conveyors on separate shafts {1} |
84 | DF | .~.~.~ In parallel intercommunicating mixing chambers {2} |
86 | .~.~.~.~ Intercommunication by conduit |