TREA

with north-seeking magnetic elements

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Industry

  • CPC
  • G01C17/04
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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

G01C17/04with north-seeking magnetic elements
Industries