FR581487A - Instrument de mesure des distances, des altitudes et des angles - Google Patents

Instrument de mesure des distances, des altitudes et des angles

Info

Publication number
FR581487A
FR581487A FR581487DA FR581487A FR 581487 A FR581487 A FR 581487A FR 581487D A FR581487D A FR 581487DA FR 581487 A FR581487 A FR 581487A
Authority
FR
France
Prior art keywords
altitudes
angles
instrument
measuring distances
distances
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
Marie-Joseph-Loui Roy-Premoran
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 filed Critical
Application granted granted Critical
Publication of FR581487A publication Critical patent/FR581487A/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
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/26—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object
    • G01C3/28—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object with provision for reduction of the distance into the horizontal plane
    • G01C3/30—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object with provision for reduction of the distance into the horizontal plane with adaptation to the measurement of the height of an object, e.g. tacheometers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR581487D 1924-03-14 1924-03-14 Instrument de mesure des distances, des altitudes et des angles Expired FR581487A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR581487T 1924-03-14

Publications (1)

Publication Number Publication Date
FR581487A true FR581487A (fr) 1924-11-29

Family

ID=8957455

Family Applications (1)

Application Number Title Priority Date Filing Date
FR581487D Expired FR581487A (fr) 1924-03-14 1924-03-14 Instrument de mesure des distances, des altitudes et des angles

Country Status (1)

Country Link
FR (1) FR581487A (fr)

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