FR1041917A - Boussole directrice - Google Patents
Boussole directriceInfo
- Publication number
- FR1041917A FR1041917A FR1041917DA FR1041917A FR 1041917 A FR1041917 A FR 1041917A FR 1041917D A FR1041917D A FR 1041917DA FR 1041917 A FR1041917 A FR 1041917A
- Authority
- FR
- France
- Prior art keywords
- compass
- directing
- directing compass
- 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
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1041917T | 1951-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1041917A true FR1041917A (fr) | 1953-10-27 |
Family
ID=9589735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1041917D Expired FR1041917A (fr) | 1951-08-20 | 1951-08-20 | Boussole directrice |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1041917A (fr) |
-
1951
- 1951-08-20 FR FR1041917D patent/FR1041917A/fr not_active Expired
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