DE191797C - - Google Patents

Info

Publication number
DE191797C
DE191797C DENDAT191797D DE191797DA DE191797C DE 191797 C DE191797 C DE 191797C DE NDAT191797 D DENDAT191797 D DE NDAT191797D DE 191797D A DE191797D A DE 191797DA DE 191797 C DE191797 C DE 191797C
Authority
DE
Germany
Prior art keywords
pointer
map
instrument
pointer axis
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT191797D
Other languages
German (de)
English (en)
Publication of DE191797C publication Critical patent/DE191797C/de
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/10—Comparing observed direction with north indication
    • G01C17/12—Comparing observed direction with north indication by sighting means, e.g. for surveyors' compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)
DENDAT191797D Active DE191797C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE191797C true DE191797C (enrdf_load_stackoverflow)

Family

ID=455172

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT191797D Active DE191797C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE191797C (enrdf_load_stackoverflow)

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