FR1041917A - Boussole directrice - Google Patents

Boussole directrice

Info

Publication number
FR1041917A
FR1041917A FR1041917DA FR1041917A FR 1041917 A FR1041917 A FR 1041917A FR 1041917D A FR1041917D A FR 1041917DA FR 1041917 A FR1041917 A FR 1041917A
Authority
FR
France
Prior art keywords
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
English (en)
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.)
Baille Lemaire Fils & Cie
Original Assignee
Baille Lemaire Fils & Cie
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 Baille Lemaire Fils & Cie filed Critical Baille Lemaire Fils & Cie
Application granted granted Critical
Publication of FR1041917A publication Critical patent/FR1041917A/fr
Expired 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)
FR1041917D 1951-08-20 1951-08-20 Boussole directrice Expired FR1041917A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1041917T 1951-08-20

Publications (1)

Publication Number Publication Date
FR1041917A true FR1041917A (fr) 1953-10-27

Family

ID=9589735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1041917D Expired FR1041917A (fr) 1951-08-20 1951-08-20 Boussole directrice

Country Status (1)

Country Link
FR (1) FR1041917A (fr)

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