75414629
Jan 7, 1998
Mar 13, 2001
Active Trademark
ELECTRONIC CONTROLS COMPRISING COMPUTER HARDWARE, TRANSMITTERS, RECEIVERS, MACHINE CONTROL INTERFACES AND COMPUTER SOFTWARE FOR PROVIDING A WAY TO LOCK OUT AN INDUSTRIAL DRILL OR BORING MACHINE FROM THE EXIT SIDE TO PREVENT UNEXPECTED MOVEMENT OR ROTATION OF THE DRILL PIPE AND TOOLING, FOR USE IN THE CONSTRUCTION INDUSTRY
Electrical and Scientific Apparatus