FR864646A - Tachéomètre autoréducteur - Google Patents
Tachéomètre autoréducteurInfo
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2976760A (en) * | 1955-10-31 | 1961-03-28 | Callahan Ezra Leo | Automatic tacheometer |
-
1940
- 1940-04-04 FR FR864646D patent/FR864646A/fr not_active Expired
Cited By (1)
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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