Full Title

Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor (G11B11/00, take precedence) > Arrangements of heads > Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers > for repeating a part of the record; for beginning or stopping at a desired point of the record