Measuring device comprises coil arranged on drill column for producing alternating field, sensor arranged on drill column for sensing alternating field, and computer to analyze signals from sensor
EP0951121A1
Box-shaped housing for electrical or electronic components
EP0951120A1
Box-shaped housing for electrical or electronic components
EP0951118A1
Box-shaped housing for electrical or electronic components
EP0951119A1
Box-shaped housing for electrical or electronic components
EP0951113A2
Rectangular case for electrical or electronic components