FR779559A - Improvements to magnetic compasses specially designed for air navigation - Google Patents

Improvements to magnetic compasses specially designed for air navigation

Info

Publication number
FR779559A
FR779559A FR779559DA FR779559A FR 779559 A FR779559 A FR 779559A FR 779559D A FR779559D A FR 779559DA FR 779559 A FR779559 A FR 779559A
Authority
FR
France
Prior art keywords
specially designed
air navigation
magnetic compasses
compasses
magnetic
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.)
Sperry Gyroscope Co Ltd
Original Assignee
Sperry Gyroscope Co Ltd
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 Sperry Gyroscope Co Ltd filed Critical Sperry Gyroscope Co Ltd
Application granted granted Critical
Publication of FR779559A publication Critical patent/FR779559A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR779559D 1934-10-11 1934-10-11 Improvements to magnetic compasses specially designed for air navigation Expired FR779559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR779559T 1934-10-11

Publications (1)

Publication Number Publication Date
FR779559A true FR779559A (en) 1935-04-09

Family

ID=9202818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR779559D Expired FR779559A (en) 1934-10-11 1934-10-11 Improvements to magnetic compasses specially designed for air navigation

Country Status (1)

Country Link
FR (1) FR779559A (en)

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