US Patent 7298275 Machine associating method and apparatus

A method for identifying a machine from within a facility for which information is to be presented via a wireless information device (WID), the method including the steps of assigning machine identifiers to each facility machine, determining WID location within the facility, presenting machine identifiers corresponding to machines associated with the WID location to the WID user, receiving a selection indication via the WID indicating one of the visually presented machine identifiers, accessing machine information corresponding to the selected machine identifier, transmitting the accessed machine information to the WID and presenting the accessed machine information via the WID.