(under subclass 174) Device wherein the dressing means acts on a tool which is (a) immovable, or (b) rotatable or oscillatable in one plane about a single, immovable axis.
(1) Note. A tool sharpener in combination with a tool which is rotatable about a movable axis or about two or more axes. (e.g., band saw) or movable into another plane, will be found in this class, subclass 174.
