164532 ⎘
Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes; Magnetic compasses with north-seeking magnetic elements, e.g. needles; Suspending magnetic elements by flotation
Annular fluidic system with compass function
#2CAPSULE FOR A COMPASS AND USE THEREOF
#3Fluid or low friction permanent magnet compass
#4Integral magnetic compass for establishing deviations in real time
#5Compass