(under subclass 438) Device which facilitates or causes constraint of work movement to a curved path, or which changes the direction of work movement from one rectilinear direction to another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
410+, for means to guide a work carrier in a nonrectilinear path.
439, for means to guide work in an arcuate path.
445, for a guide means which permits (but does not cause) angling or reorientation of work adjacent a cutting zone.
