US PATENT SUBCLASS 434 / 309
.~ Common carrier for visual means and audio recording

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

308  DF  AUDIO RECORDING AND VISUAL MEANS {4}
309.~ Common carrier for visual means and audio recording {2}
310  DF  .~.~> Carrier used with image projector
311  DF  .~.~> Card, sheet, or block {1}

DEFINITION

Classification: 434/309

Common carrier for visual means and audio recording:

(under subclass 308) Subject matter wherein both visual and sound information are included on the same carrier structure.