WARREN AUTOMATIC TOOL COMPANY Trademarks
BARREL-O-GRAF
Filed: October 23, 1967
INDICATOR AND RECORDER OF TOTAL BARRELS OF MUD IN ACTIVE SERVICE MUD SYSTEM WITH AUDIBLE ALARM
Owned by: WARREN AUTOMATIC TOOL COMPANY
Serial Number: 72283182
WATCO
Filed: April 21, 1980
Measuring Instruments Used in Drilling Operations-Namely, Consoles which Measure Drilling Rate Response, Pump Pressure,…
Owned by: WARREN AUTOMATIC TOOL COMPANY
Serial Number: 73258784
W WARREN AUTOMATIC TOOL CO.
Filed: May 2, 1980
Electrical and Mechanical Measuring Instruments for Use in the Exploration and Drilling of Oil and Gas Wells
Owned by: WARREN AUTOMATIC TOOL COMPANY
Serial Number: 73260533
