FR818171A - Boussole d'orientation - Google Patents
Boussole d'orientationInfo
- Publication number
- FR818171A FR818171A FR818171DA FR818171A FR 818171 A FR818171 A FR 818171A FR 818171D A FR818171D A FR 818171DA FR 818171 A FR818171 A FR 818171A
- Authority
- FR
- France
- Prior art keywords
- orientation compass
- compass
- orientation
- 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 |
---|---|---|---|
AT818171X | 1936-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR818171A true FR818171A (fr) | 1937-09-20 |
Family
ID=3681523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR818171D Expired FR818171A (fr) | 1936-04-03 | 1937-02-20 | Boussole d'orientation |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR818171A (fr) |
-
1937
- 1937-02-20 FR FR818171D patent/FR818171A/fr not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR821125A (fr) | Systèmes d'aériens | |
FR831489A (fr) | Matériel d'artillerie | |
FR815777A (fr) | Mécanisme d'horlogerie | |
FR816799A (fr) | Matériel d'artillerie | |
FR818171A (fr) | Boussole d'orientation | |
FR817654A (fr) | Trépied | |
FR816903A (fr) | Carburateur | |
FR807678A (fr) | Tresse d'espadrille spéciale | |
FR779509A (fr) | Boussole d'orientation géodésique | |
FR728940A (fr) | Boussole d'orientation | |
FR819670A (fr) | Dispositif d'aérage | |
FR823406A (fr) | Détendeur | |
FR821957A (fr) | Gyroscope | |
FR826288A (fr) | Pot d'échappement | |
FR821114A (fr) | Instrument gyroscopique perfectionné | |
FR813934A (fr) | Hachoir d'hôtel | |
FR822200A (fr) | épurateur d'air | |
FR811318A (fr) | Té-rapporteur d'angle | |
FR813168A (fr) | Meuble d'épargne scolaire | |
FR47302E (fr) | Détendeur | |
FR818693A (fr) | Construction perfectionnée d'aéronefs | |
FR48645E (fr) | Transformation d'oscillations à relaxations | |
FR826616A (fr) | Perfectionnements aux gyros verticaux | |
FR811479A (fr) | alpha-arylsulfamideo-alpha-nitroanthraquinones | |
FR812513A (fr) | Clinomètre |