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FR478837A - Compass - Google Patents

Compass

Info

Publication number
FR478837A
FR478837A FR478837DA FR478837A FR 478837 A FR478837 A FR 478837A FR 478837D A FR478837D A FR 478837DA FR 478837 A FR478837 A FR 478837A
Authority
FR
France
Prior art keywords
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
Otto Biland
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR478837A publication Critical patent/FR478837A/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
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/10—Comparing observed direction with north indication
    • G01C17/12—Comparing observed direction with north indication by sighting means, e.g. for surveyors' compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR478837D 1915-03-29 1915-03-29 Compass Expired FR478837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR478837T 1915-03-29

Publications (1)

Publication Number Publication Date
FR478837A true FR478837A (en) 1916-01-12

Family

ID=1516298

Family Applications (1)

Application Number Title Priority Date Filing Date
FR478837D Expired FR478837A (en) 1915-03-29 1915-03-29 Compass

Country Status (1)

Country Link
FR (1) FR478837A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488605A (en) * 1948-02-04 1949-11-22 Jean E Progneaux Sundial

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488605A (en) * 1948-02-04 1949-11-22 Jean E Progneaux Sundial

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