FR561759A - Improvements to range finders, altimeters, inclinometers, etc. - Google Patents

Improvements to range finders, altimeters, inclinometers, etc.

Info

Publication number
FR561759A
FR561759A FR561759DA FR561759A FR 561759 A FR561759 A FR 561759A FR 561759D A FR561759D A FR 561759DA FR 561759 A FR561759 A FR 561759A
Authority
FR
France
Prior art keywords
inclinometers
altimeters
range finders
finders
range
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)
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics Ltd
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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Application granted granted Critical
Publication of FR561759A publication Critical patent/FR561759A/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
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
    • G01C3/12—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument with monocular observation at a single point, e.g. coincidence type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR561759D 1922-02-16 1923-02-02 Improvements to range finders, altimeters, inclinometers, etc. Expired FR561759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB561759X 1922-02-16

Publications (1)

Publication Number Publication Date
FR561759A true FR561759A (en) 1923-10-27

Family

ID=10475933

Family Applications (1)

Application Number Title Priority Date Filing Date
FR561759D Expired FR561759A (en) 1922-02-16 1923-02-02 Improvements to range finders, altimeters, inclinometers, etc.

Country Status (1)

Country Link
FR (1) FR561759A (en)

Similar Documents

Publication Publication Date Title
FR561759A (en) Improvements to range finders, altimeters, inclinometers, etc.
FR33020E (en) Improvements to inclinometers, clinometers, etc.
FR558884A (en) Improvements to slippers, slippers, etc.
FR556910A (en) Land leveler
FR586109A (en) Ohmic direction finder
CH100247A (en) Planer.
FR607685A (en) Improvements to altimeters
ES76543A1 (en) Distance measuring telescope.
ES73786A1 (en) Distance measuring telescope.
FR547746A (en) Improvements to object hooks, etc.
FR567587A (en) Improvements to direction finders
DK32315C (en) Orienteering map.
ES77187A3 (en) A coincidence rangefinder.
FR564428A (en) Improvements to pumps or inflators
DK32526C (en) Excavation cutter.
ES79795A1 (en) A rangefinder.
FR537820A (en) Rangefinder improvements
ES72410A1 (en) Compass.
ES84905A1 (en) Aviation compass.
DK33191C (en) Calculator.
FR29671E (en) Improvements to direction finders
FR30309E (en) Improvements to direction finders
FR602364A (en) Improvements to direction finders
FR27319E (en) Altimeter
FI9262A (en) Low loaders