BE341400A - - Google Patents

Info

Publication number
BE341400A
BE341400A BE341400DA BE341400A BE 341400 A BE341400 A BE 341400A BE 341400D A BE341400D A BE 341400DA BE 341400 A BE341400 A BE 341400A
Authority
BE
Belgium
Prior art keywords
devices
question
magnetic system
inclination
hand
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE341400A publication Critical patent/BE341400A/fr

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instructional Devices (AREA)
BE341400D BE341400A (2)

Publications (1)

Publication Number Publication Date
BE341400A true BE341400A (2)

Family

ID=18022

Family Applications (1)

Application Number Title Priority Date Filing Date
BE341400D BE341400A (2)

Country Status (1)

Country Link
BE (1) BE341400A (2)

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