GEOLOGRAPH
Filed: August 21, 1961
MECHANICAL INSTRUMENT FOR RECORDING DATA CONCERNING WELL DRILLING OPERATIONS, SUCH AS DRILLING TIME IN MINUTES PER FOOT,…
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 72126335
GEOCHECK
Filed: August 29, 1961
DRIFT INDICATOR RECORDER INSTRUMENT, DESIGNED FOR USE IN OIL WELL DRILLING OPERATIONS, TO RECORD IN DEGREES, THE VARIATION…
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 72126864
BITOGRAPH
Filed: March 5, 1962
BIT PENETRATION RECORDER INSTRUMENT, DESIGNED FOR USE IN OIL WELL DRILLING OPERATIONS TO GRAPHICALLY RECORD THE BIT PENETRATION…
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 72139367
GEODRIL
Filed: April 30, 1984
AUTOMATIC DRILLING WEIGHT CONTROL EQUIPMENT FOR USE IN THE DRILLING INDUSTRY
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 73477758
GEOCHECK
Filed: April 30, 1984
Drift Indicator Instrument Designed for Use in Oil Well Drilling Operations, to Record in Degrees, the Variation from Vertical…
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 73478064
GEOLOGRAPH PIONEER
Filed: April 30, 1984
A MECHANICAL INSTRUMENT FOR RECORDING DATA CONCERNING WELL DRILLING OPERATIONS, SUCH AS DRILLING TIME IN MINUTES PER FOOT…
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 73478089
CLEANMASTER
Filed: July 30, 1984
CENTRIFUGAL SEPARATORS
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 73492251
CYCLOMITE
Filed: July 30, 1984
CENTRIFUGAL SEPARATORS
Owned by: GEOLOGRAPH COMPANY, THE
Serial Number: 73492252
