(under subclass 353) Device in which the member is reciprocatory and in which the means includes structure adapted to grip and be moved by said member during one stroke of said member and release and slip relative to said member during the return stroke, the indicator being moved by the structure during said one stroke of the member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
350, for a copy holder which includes clutch-actuated mechanism for elevating a copy-supporting platen relative to a line indicator.