FR412095A - Protractor curvigraph - Google Patents

Protractor curvigraph

Info

Publication number
FR412095A
FR412095A FR412095DA FR412095A FR 412095 A FR412095 A FR 412095A FR 412095D A FR412095D A FR 412095DA FR 412095 A FR412095 A FR 412095A
Authority
FR
France
Prior art keywords
curvigraph
protractor
protractor curvigraph
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
Joan-Stefan Agarici
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.)
JOAN STEFAN AGARICI
Original Assignee
JOAN STEFAN AGARICI
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 JOAN STEFAN AGARICI filed Critical JOAN STEFAN AGARICI
Application granted granted Critical
Publication of FR412095A publication Critical patent/FR412095A/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)
FR412095D 1910-01-31 1910-01-31 Protractor curvigraph Expired FR412095A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR412095T 1910-01-31

Publications (1)

Publication Number Publication Date
FR412095A true FR412095A (en) 1910-07-02

Family

ID=1455991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR412095D Expired FR412095A (en) 1910-01-31 1910-01-31 Protractor curvigraph

Country Status (1)

Country Link
FR (1) FR412095A (en)

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