FR419567A - Topographic and directing compass - Google Patents

Topographic and directing compass

Info

Publication number
FR419567A
FR419567A FR419567DA FR419567A FR 419567 A FR419567 A FR 419567A FR 419567D A FR419567D A FR 419567DA FR 419567 A FR419567 A FR 419567A
Authority
FR
France
Prior art keywords
topographic
compass
directing
directing compass
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Dominique-Eugene-Paul Balagny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOMINIQUE EUGENE PAUL BALAGNY
Original Assignee
DOMINIQUE EUGENE PAUL BALAGNY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DOMINIQUE EUGENE PAUL BALAGNY filed Critical DOMINIQUE EUGENE PAUL BALAGNY
Application granted granted Critical
Publication of FR419567A publication Critical patent/FR419567A/en
Expired legal-status Critical Current

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
    • G01C17/02Magnetic compasses
    • G01C17/04Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/10Comparing observed direction with north indication
    • G01C17/12Comparing 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)
FR419567D 1910-08-20 1910-08-20 Topographic and directing compass Expired FR419567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR419567T 1910-08-20

Publications (1)

Publication Number Publication Date
FR419567A true FR419567A (en) 1911-01-10

Family

ID=1462782

Family Applications (1)

Application Number Title Priority Date Filing Date
FR419567D Expired FR419567A (en) 1910-08-20 1910-08-20 Topographic and directing compass

Country Status (1)

Country Link
FR (1) FR419567A (en)

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