US PATENT SUBCLASS 434 / 307 R
CATHODE RAY SCREEN DISPLAY AND AUDIO MEANS

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

307 RCATHODE RAY SCREEN DISPLAY AND AUDIO MEANS {1}
307 A  DF  .~> Karaoke

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 434/307

CATHODE RAY SCREEN DISPLAY AND AUDIO MEANS:

(under the class definition) Subject matter wherein visual and sound information is presented by means including a cathode ray tube.

(1) Note. This subclass includes cathode ray screen displays which originate from wireless broadcasts, closed circuit systems, and videotape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

323, for cathode ray screen displays which present a question or problem for eliciting a response from an examinee.