(under subclass 171) Subject matter comprising a mechanism for supporting or moving the recording means from an operative position in which the recording means is pressed against the record receiver to an inoperative position in which the recording means is released from pressing engagement with the record receiver.
SEE OR SEARCH CLASS
400, Typewriting Machines,
120.01+, for thermal or hot-stamp typing, subclass 175 for detachable type head, subclasses 319+ for carriage-feed mechanism.