FR840639A - Compas - Google Patents
CompasInfo
- Publication number
- FR840639A FR840639A FR840639DA FR840639A FR 840639 A FR840639 A FR 840639A FR 840639D A FR840639D A FR 840639DA FR 840639 A FR840639 A FR 840639A
- Authority
- FR
- France
- Prior art keywords
- 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
- G01C17/28—Electromagnetic compasses
- G01C17/30—Earth-inductor compasses
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE840639X | 1937-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR840639A true FR840639A (fr) | 1939-04-28 |
Family
ID=6764248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR840639D Expired FR840639A (fr) | 1937-07-13 | 1938-07-13 | Compas |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR840639A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE866101C (de) * | 1943-02-02 | 1953-02-05 | Aga Baltic Aktiebolag | Kursanzeigende Vorrichtung nach dem Induktionsprinzip |
-
1938
- 1938-07-13 FR FR840639D patent/FR840639A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE866101C (de) * | 1943-02-02 | 1953-02-05 | Aga Baltic Aktiebolag | Kursanzeigende Vorrichtung nach dem Induktionsprinzip |
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