US PATENT SUBCLASS 434 / 312
.~.~.~ Reading head moved past stationary audio track

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


434 /   HD   EDUCATION AND DEMONSTRATION

308  DF  AUDIO RECORDING AND VISUAL MEANS {4}
309  DF  .~ Common carrier for visual means and audio recording {2}
311  DF  .~.~ Card, sheet, or block {1}
312.~.~.~ Reading head moved past stationary audio track {1}
313  DF  .~.~.~.~> Manually

DEFINITION

Classification: 434/312

Reading head moved past stationary audio track:

(under subclass 311) Subject matter wherein the sound information is reproduced by moving a reproducing head past an audio track on a stationary card, sheet, or block.