FR375266A - Perfectionnements aux boussoles - Google Patents

Perfectionnements aux boussoles

Info

Publication number
FR375266A
FR375266A FR375266DA FR375266A FR 375266 A FR375266 A FR 375266A FR 375266D A FR375266D A FR 375266DA FR 375266 A FR375266 A FR 375266A
Authority
FR
France
Prior art keywords
refinements
compass
compass refinements
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)
Inventor
Anton Laube
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 FR375266A publication Critical patent/FR375266A/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
    • 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)
FR375266D 1907-02-21 1907-02-21 Perfectionnements aux boussoles Expired FR375266A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR375266T 1907-02-21

Publications (1)

Publication Number Publication Date
FR375266A true FR375266A (fr) 1907-07-04

Family

ID=1421841

Family Applications (1)

Application Number Title Priority Date Filing Date
FR375266D Expired FR375266A (fr) 1907-02-21 1907-02-21 Perfectionnements aux boussoles

Country Status (1)

Country Link
FR (1) FR375266A (fr)

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