FR353320A - Instrument d'arpentage - Google Patents

Instrument d'arpentage

Info

Publication number
FR353320A
FR353320A FR353320DA FR353320A FR 353320 A FR353320 A FR 353320A FR 353320D A FR353320D A FR 353320DA FR 353320 A FR353320 A FR 353320A
Authority
FR
France
Prior art keywords
surveying instrument
surveying
instrument
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
Charles-Auguste Boisnon
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 AUGUSTE BOISNON
Original Assignee
CHARLES AUGUSTE BOISNON
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 AUGUSTE BOISNON filed Critical CHARLES AUGUSTE BOISNON
Application granted granted Critical
Publication of FR353320A publication Critical patent/FR353320A/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)
FR353320D 1905-04-01 1905-04-01 Instrument d'arpentage Expired FR353320A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR353320T 1905-04-01

Publications (1)

Publication Number Publication Date
FR353320A true FR353320A (fr) 1905-09-08

Family

ID=1401490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR353320D Expired FR353320A (fr) 1905-04-01 1905-04-01 Instrument d'arpentage

Country Status (1)

Country Link
FR (1) FR353320A (fr)

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