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7327108 System and methods for automatically moving access barriers initiated by mobile transmitter devices  
An operator system and related methods for automatically controlling access barriers which includes a base controller associated with at least one access barrier and at least one base receiver...
7327107 System and methods for automatically moving access barriers initiated by mobile transmitter devices  
An operator system and related methods for automatically controlling access barriers which includes a base controller associated with at least one access barrier and at least one base receiver...
Matches 1 - 2 out of 2