US PATENT SUBCLASS 434 / 308
AUDIO RECORDING AND VISUAL MEANS

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

308AUDIO RECORDING AND VISUAL MEANS {4}
309  DF  .~> Common carrier for visual means and audio recording {2}
314  DF  .~> Image projector {2}
317  DF  .~> Visual information in book form
318  DF  .~> Audio recording on disk

DEFINITION

Classification: 434/308

AUDIO RECORDING AND VISUAL MEANS:

(under the class definition) Subject matter wherein instruction is presented both audibly from a sound recording and visually.

SEE OR SEARCH THIS CLASS, SUBCLASS:

156, for an audio recording used in language instruction.

319, for subject matter wherein instruction is presented only from an audio recording, with no visual presentation.

322, for visual means for presenting a question or problem for eliciting a response from an examinee, with no audio recording.

SEE OR SEARCH CLASS

352, Optics: Motion Pictures, 1+, for motion pictures with sound accompaniment where the invention relates to the film and/or projector structure even though the intellectual content may be educational.

353, Optics: Image Projectors,

15+, for slide projectors with film accompaniment.