| 434 / | HD | EDUCATION AND DEMONSTRATION |
| 322 | DF | QUESTION OR PROBLEM ELICITING RESPONSE {8} |
| 350 | ![]() | .~ Response of plural examinees communicated to monitor or recorder by electrical signals {2} |
| 351 | DF | .~.~> Wireless signals |
| 352 | DF | .~.~> With means for indicating first examinee to respond |