FR426695A - Compass for aviators - Google Patents

Compass for aviators

Info

Publication number
FR426695A
FR426695A FR426695DA FR426695A FR 426695 A FR426695 A FR 426695A FR 426695D A FR426695D A FR 426695DA FR 426695 A FR426695 A FR 426695A
Authority
FR
France
Prior art keywords
aviators
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
French (fr)
Inventor
Charles Duffaud
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.)
CHARLES DUFFAUD
Original Assignee
CHARLES DUFFAUD
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 CHARLES DUFFAUD filed Critical CHARLES DUFFAUD
Application granted granted Critical
Publication of FR426695A publication Critical patent/FR426695A/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)
FR426695D 1911-03-01 1911-03-01 Compass for aviators Expired FR426695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR426695T 1911-03-01

Publications (1)

Publication Number Publication Date
FR426695A true FR426695A (en) 1911-07-12

Family

ID=1469249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR426695D Expired FR426695A (en) 1911-03-01 1911-03-01 Compass for aviators

Country Status (1)

Country Link
FR (1) FR426695A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803068A (en) * 1956-03-08 1957-08-20 Russell I Mason Swimmer's underwater compass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803068A (en) * 1956-03-08 1957-08-20 Russell I Mason Swimmer's underwater compass

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