Abstract: A system for locating a position marker includes a locating device for locating the position marker, and a GPS device communicatively coupled to the locating device that provides GPS coordinate data when the position marker is located by the locating device. Electronic memory is provided in at least one of the locating device and the GPS device for storing a data record associating the GPS coordinate data with the located position marker.
Type:
Grant
Filed:
March 17, 2004
Date of Patent:
January 15, 2008
Assignee:
3M Innovaative Properties Company
Inventors:
Corey M. Willson, Ziyad Hanna Doany, Timothy A. Parkinson