FR610657A - Magnetic compass with compensation for the needle induction of the rose - Google Patents

Magnetic compass with compensation for the needle induction of the rose

Info

Publication number
FR610657A
FR610657A FR610657DA FR610657A FR 610657 A FR610657 A FR 610657A FR 610657D A FR610657D A FR 610657DA FR 610657 A FR610657 A FR 610657A
Authority
FR
France
Prior art keywords
rose
compensation
magnetic compass
needle induction
needle
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)
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.)
Precision Moderne SA
Original Assignee
Precision Moderne SA
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 Precision Moderne SA filed Critical Precision Moderne SA
Application granted granted Critical
Publication of FR610657A publication Critical patent/FR610657A/en
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
    • G01C17/38—Testing, calibrating, or compensating of compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR610657D 1926-02-05 1926-02-05 Magnetic compass with compensation for the needle induction of the rose Expired FR610657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR610657T 1926-02-05

Publications (1)

Publication Number Publication Date
FR610657A true FR610657A (en) 1926-09-10

Family

ID=8977554

Family Applications (1)

Application Number Title Priority Date Filing Date
FR610657D Expired FR610657A (en) 1926-02-05 1926-02-05 Magnetic compass with compensation for the needle induction of the rose

Country Status (1)

Country Link
FR (1) FR610657A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508386A (en) * 1945-05-05 1950-05-23 Edward W Hart Quadrantal corrector for magnetic compasses
US4656751A (en) * 1985-09-10 1987-04-14 Rule Industries, Inc. Magnetic compass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508386A (en) * 1945-05-05 1950-05-23 Edward W Hart Quadrantal corrector for magnetic compasses
US4656751A (en) * 1985-09-10 1987-04-14 Rule Industries, Inc. Magnetic compass

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