The invention is a secure container for the transport and storage of materials that can alert the user as to the location and condition of materials, as well as container status. This provides cargo and access information that is critical in high-value or controlled shipments. The container uses a wound...http://www.google.com.au/patents/US6556138?utm_source=gb-gplus-sharePatent US6556138 - Secure storage and transport container for the handling of controlled materials
