Systems and methods for monitoring buildings to detect harmful chemical or biological agents. Self-propelled harmful agent detectors are provided that can propel themselves using motors and self-contained power sources. On-board harmful agent sensors can detect the presence of harmful agents and transmit...http://www.google.fr/patents/US6701772?utm_source=gb-gplus-shareBrevet US6701772 - Chemical or biological attack detection and mitigation system
Chemical or biological attack detection and mitigation system
