83 / | HD | CUTTING |
788 | DF | BY ENDLESS BAND OR CHAIN KNIFE {10} |
809 | .~ Including means to adjust relationship between band and work-support surface {2} | |
810 | DF | .~.~> By varying angle between band and work-support surface {1} |
813 | DF | .~.~> By varying distance between band and work-support surface |