83 / | HD | CUTTING |
746 | DF | BY TOOL RECIPROCABLE ALONG ELONGATED EDGE {11} |
776 | ![]() | .~ Having uniplanar compound motion {3} |
777 | DF | .~.~> By plural arcuately oscillating carrier |
778 | DF | .~.~> Constantly oriented tool travelling in orbit |
779 | DF | .~.~> Tool rocks cutting reciprocations {1} |