(under subclass 120) Subject matter wherein the radiation beam is altered by the transparent and opaque areas of the memory material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
113, for amorphous memories exhibiting transparency properties.
SEE OR SEARCH CLASS
235, Registers,
454+, for optical card readers.
386, Television Signal Processing for Dynamic Recording or Reproducing, 30, 38, 42+, 108, 117+, and 128+ for photos:graphic television recording, and subclass 126 for television recording having optical disc.
