26 ELECTRONIC DIGITIZING DEVICE FOR CONVERTING COORDINATE DATA BETWEEN DIGITAL AND ANALOG FORM THAT IS PARTICULARLY USEFUL FOR PROVIDING MEASUREMENTS IN DIGITAL FORM OF POSITIONS ON MAPS, GRAPHS, PHOTOGRAPHS, AND THE LIKE
Trademark Events
Nov 4, 1992
Expired Sec. 9
Feb 28, 1977
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.