77702523
Mar 30, 2009
May 18, 2010
COMPUTER SOFTWARE FOR AUTOMATING COMMUNICATION BETWEEN PARTICIPANTS IN INTERACTIVE ENVIRONMENTS, AND POLLING, TRACKING, AND EVALUATING COMMUNICATIONS IN THE FIELD OF EDUCATION AND TRAINING; HANDHELD ELECTRONIC KEYPADS FOR AUTOMATED WIRELESS COMMUNICATION IN INTERACTIVE ENVIRONMENTS; PROGRAMMABLE ELECTRONIC WIRELESS KEYPADS
Electrical and Scientific Apparatus