FR864646A - Tachéomètre autoréducteur - Google Patents

Tachéomètre autoréducteur

Info

Publication number
FR864646A
FR864646A FR864646DA FR864646A FR 864646 A FR864646 A FR 864646A FR 864646D A FR864646D A FR 864646DA FR 864646 A FR864646 A FR 864646A
Authority
FR
France
Prior art keywords
tacheometer
self
reducing
reducing tacheometer
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
Poichet Edmond Jean Lucien
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.)
LUNETIERS EPARVIER DESTRIBOIS
Original Assignee
LUNETIERS EPARVIER DESTRIBOIS
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 LUNETIERS EPARVIER DESTRIBOIS filed Critical LUNETIERS EPARVIER DESTRIBOIS
Application granted granted Critical
Publication of FR864646A publication Critical patent/FR864646A/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)
FR864646D 1940-04-04 1940-04-04 Tachéomètre autoréducteur Expired FR864646A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR864646T 1940-04-04

Publications (1)

Publication Number Publication Date
FR864646A true FR864646A (fr) 1941-05-01

Family

ID=9343981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864646D Expired FR864646A (fr) 1940-04-04 1940-04-04 Tachéomètre autoréducteur

Country Status (1)

Country Link
FR (1) FR864646A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976760A (en) * 1955-10-31 1961-03-28 Callahan Ezra Leo Automatic tacheometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976760A (en) * 1955-10-31 1961-03-28 Callahan Ezra Leo Automatic tacheometer

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