(under subclass 171) Subject matter wherein a recording means (e.g., thermal head) conducts current through a resistive layer of the record receiver or an ink carrier for generating heat to produce a mark or symbol upon the record receiver by the reason of the receiver becoming scorched, burned, marked, or otherwise thermochemically changed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
159+, for electrical discharge recording (e.g., spark).
163+, for electrochemical recording.
SEE OR SEARCH CLASS
346, Recorders,
150.1, and 150.2 for phenomenal electrical discharge recording and phenomenal electrochemical recording respectively.