TREA

Earth-inductor compasses

Follow

Industry

  • CPC
  • G01C17/30
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

GPHYSICS G01Measuring instruments G01CMEASURING DISTANCES, LEVELS OR BEARINGS SURVEYING NAVIGATION GYROSCOPIC INSTRUMENTS PHOTOGRAMMETRY OR VIDEOGRAMMETRY G01C17/00Compasses Devices for ascertaining true or magnetic north for navigation or surveying purposes

Current Industry

G01C17/30Earth-inductor compasses
Industries