Mark Identification
WATCHDOG
Serial Number
73359319
Filing Date
Apr 12, 1982
Trademark by
Classification Information
INSTRUCTION UTILIZED IN THE DRILLING OF OIL AND GAS WELLS, NAMELY GAS DETECTORS,TRIP GUARDS, FLOW SENSORS AND TRIP MONITORS, LOSS/GAIN INDI CATORS, PUMP STROKE COUNTERS, PIT VOLUME TOTALIZERS
Electrical and Scientific Apparatus