definition
strict definition
automatic door manufacturer
A company that manufactures mechanized doors that open automatically when people approach.
Companies which manufacture and provide mechanized doors which open automatically when people approach them.
The door responds to an approaching person by opening mechanically. This automatic opening is the distinguishing feature of the supplied door, rather than the material of its leaf or frame.
A door closer manufacturer makes a device that returns an opened door to a closed position. Closing a door automatically does not by itself provide the approach-operated opening described here.
