DE247162C - - Google Patents

Info

Publication number
DE247162C
DE247162C DENDAT247162D DE247162DA DE247162C DE 247162 C DE247162 C DE 247162C DE NDAT247162 D DENDAT247162 D DE NDAT247162D DE 247162D A DE247162D A DE 247162DA DE 247162 C DE247162 C DE 247162C
Authority
DE
Germany
Prior art keywords
plane mirror
orientation
needle
small
attached
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
DENDAT247162D
Other languages
German (de)
English (en)
Publication of DE247162C publication Critical patent/DE247162C/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)
  • Telescopes (AREA)
DENDAT247162D Active DE247162C (enExample)

Publications (1)

Publication Number Publication Date
DE247162C true DE247162C (enExample)

Family

ID=505974

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT247162D Active DE247162C (enExample)

Country Status (1)

Country Link
DE (1) DE247162C (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214008B (de) * 1952-05-16 1966-04-07 Dr Otto Rellensmann Vermessungskreiselkompass
DE1230235B (de) * 1960-11-10 1966-12-08 Zeiss Carl Fa Orientierungsbussole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214008B (de) * 1952-05-16 1966-04-07 Dr Otto Rellensmann Vermessungskreiselkompass
DE1230235B (de) * 1960-11-10 1966-12-08 Zeiss Carl Fa Orientierungsbussole

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