75551158
Sep 9, 1998
electronic locating systems comprising antennae that emit and detect high frequency radio signals, electronic tags that respond to the signals, microprocessor-based computer hardware and computer software that calculate tag locations from antennae signals, and computer software for storing, mapping, displaying and tracking tag locations; computer software for developing applications related to storing, mapping, displaying and tracking tag locations; user manuals sold as a unit with the foregoing
Electrical and Scientific Apparatus