FR563988A - Improvements to rotating coil compasses - Google Patents

Improvements to rotating coil compasses

Info

Publication number
FR563988A
FR563988A FR563988DA FR563988A FR 563988 A FR563988 A FR 563988A FR 563988D A FR563988D A FR 563988DA FR 563988 A FR563988 A FR 563988A
Authority
FR
France
Prior art keywords
compasses
rotating coil
coil
rotating
coil compasses
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
Moriss Maxey Titterington
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 filed Critical
Application granted granted Critical
Publication of FR563988A publication Critical patent/FR563988A/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)
FR563988D 1922-03-11 1923-03-09 Improvements to rotating coil compasses Expired FR563988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US563988XA 1922-03-11 1922-03-11

Publications (1)

Publication Number Publication Date
FR563988A true FR563988A (en) 1923-12-18

Family

ID=22004131

Family Applications (1)

Application Number Title Priority Date Filing Date
FR563988D Expired FR563988A (en) 1922-03-11 1923-03-09 Improvements to rotating coil compasses

Country Status (1)

Country Link
FR (1) FR563988A (en)

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