.~> Common picture and sound record carrier system
(under the class definition) Subject matter wherein the image projector is synchronized or otherwise combined with a means to reproduce sounds, such as music or speech, and which sounds bear a relationship to the projected pictures.
(1) Note. The Optics: Motion Pictures, class provides for motion picture projectors accompanied by sound where the "motion" is either claimed or disclosed (see Search Class note below). This Class (353) provides for sound accompanied slide or still picture projectors.
SEE OR SEARCH CLASS
40, Card, Picture, or Sign Exhibiting,
455+, for a changeable exhibitor with sound accompaniment.
352, Optics: Motion Pictures,
1+, for a sound-accompanied motion picture projector. See (1) Note above. 360, Dynamic Magnetic Information Storage or Retrieval,
1+, and 80 for magnetic recorders or reproducers combined with nominal projector apparatus.
369, Dynamic Information Storage or Retrieval,
70, for control by a sound-conversion device of a nominally claimed image projector.