DIGITRAK
Filed: February 5, 1992
electronic devices; namely, surface recievers and subsurface transmitters for locating and monitoring underground drill…
Owned by: Digital Control, Inc.
Serial Number: 74243321
SUPER SONDE
Filed: February 5, 1992
electronic devices; namely, subsurface transmitters for locating and monitoring drill heads
Owned by: Digital Control, Inc.
Serial Number: 74243323
TRANSITRAK
Filed: July 31, 1997
electronic tracking system, comprising radio transmitters and receivers, for horizontal boring and directional subsurface…
Owned by: Digital Control, Inc.
Serial Number: 75333528
DATALOG
Filed: February 8, 1999
COMPUTER SOFTWARE FOR COLLECTION DATA, DISPLAYING DATA, AND PRODUCING REPORTS BASED ON INFORMATION GENERATED IN THE OPERATION…
Owned by: Digital Control, Inc.
Serial Number: 75636050
TARGET STEERING
Filed: October 1, 2001
DIGITAL RECEIVERS AND TRANSMITTERS FOR USE IN LOCATING AND MONITORING DRILL HEADS IN HORIZONTAL DIRECTIONAL SUBSURFACE DRILLING…
Owned by: Digital Control, Inc.
Serial Number: 76319398
