.~ Comprising reciprocating or oscillating material-mover {5}
167
.~.~ With spring-biased grip element
DEFINITION
Classification: 226/167
(under subclass 158) Device provided with means for resiliently urging a clamping portion of the material-mover into engagement with the material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
162+, for a device wherein a grip element is (1) spring-biased away from the material or (2) spring-biased toward material, but moved away from the material by some other means.