76314256
Sep 18, 2001
Jul 22, 2003
Transmission of data from remote sources, namely water meters, HVAC systems, thermostats, chemical measuring sensors, gas meters, electric meters, mechanical meters, digital meters, security systems, control panels, parking meters, hour meters, propane meters, water pump station meters, temperature meters, manufacturing load sensors via a global computer network and wireless communication devices, namely RF transceivers
Telecommunications