FR867339A - Perfectionnements aux compas magnétiques - Google Patents

Perfectionnements aux compas magnétiques

Info

Publication number
FR867339A
FR867339A FR867339DA FR867339A FR 867339 A FR867339 A FR 867339A FR 867339D A FR867339D A FR 867339DA FR 867339 A FR867339 A FR 867339A
Authority
FR
France
Prior art keywords
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
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.)
Sperry Products Inc
Original Assignee
Sperry Products Inc
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 Products Inc filed Critical Sperry Products Inc
Application granted granted Critical
Publication of FR867339A publication Critical patent/FR867339A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR867339D 1939-06-10 1939-10-23 Perfectionnements aux compas magnétiques Expired FR867339A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US867339XA 1939-06-10 1939-06-10

Publications (1)

Publication Number Publication Date
FR867339A true FR867339A (fr) 1941-10-13

Family

ID=22200532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR867339D Expired FR867339A (fr) 1939-06-10 1939-10-23 Perfectionnements aux compas magnétiques

Country Status (1)

Country Link
FR (1) FR867339A (fr)

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