(under subclass 101) Subject matter wherein the presentation on a fixed medium is produced by means of a continuously moving beam or stream of ink, light, ions, electrons, or radiation.
SEE OR SEARCH CLASS
346, Recorders,
107.3, for details of phenomenal recorders including mirror galvanometer.
347, Incremental Printing of Symbolic Information,
225+, for apparatus and processes for marking a record receiver by scanning the record receiver with a writing beam, subclasses 226+ for cathode ray scanner, subclasses 120+ for marking the medium by information carrying flow of invisible
charged particles, and subclasses 129+ for electrostatic marking apparatus including photoscanning device.