MULTICHECK
Filed: February 13, 1957
DRIFT INDICATOR RECORDER INSTRUMENTS
Owned by: THE GEOLOGRAPH COMPANY (PARTNERSHIP)
Serial Number: 72024341
TRIP ACTION
Filed: February 13, 1957
MECHANICAL WELL LOGGING INSTRUMENTS
Owned by: THE GEOLOGRAPH COMPANY (PARTNERSHIP)
Serial Number: 72024342
MAGNA SENSOR
Filed: April 19, 1957
MECHANICAL WELL LOGGING INSTRUMENTS
Owned by: THE GEOLOGRAPH COMPANY (PARTNERSHIP)
Serial Number: 72028510
GEODRIL
Filed: June 18, 1958
AUTOMATIC DRILLING WEIGHT CONTROL EQUIPMENT
Owned by: THE GEOLOGRAPH COMPANY (PARTNERSHIP)
Serial Number: 72053790
GEOWEIGHT
Filed: February 25, 1959
DEVICES TO DETERMINE AND RECORD DRILL STRING WEIGHT IN EARTH BORING OPERATIONS
Owned by: THE GEOLOGRAPH COMPANY (PARTNERSHIP)
Serial Number: 72068399
GEOCURVE
Filed: May 9, 1960
DRILLING TIME RECORDER EQUIPMENT
Owned by: THE GEOLOGRAPH COMPANY (PARTNERSHIP)
Serial Number: 72096693
GEOPUMP
Filed: May 9, 1960
DRILLING PUMP PRESSURE RECORDER EQUIPMENT
Owned by: THE GEOLOGRAPH COMPANY (PARTNERSHIP)
Serial Number: 72096694
