164536 ⎘
Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes; Magnetic compasses with north-seeking magnetic elements, e.g. needles; Comparing observed direction with north indication by clinometers, e.g. for determining dip or strike of geological strata
Level gauge that measures inclination angle having a rolling member that verifies levelness
#2Automated mobile geotechnical mapping
#3Apparatus and methods for measuring strike and dip, trend and plunge, bearings, and inclination
#4Clinometer and method for measuring strike and dip angle using same
#5Compass and clinometer apparatus having the compass
#6Clinometer apparatus
#7Apparatus for measuring geologic strike and dip