FR384308A - Boussole - Google Patents
BoussoleInfo
- Publication number
- FR384308A FR384308A FR384308DA FR384308A FR 384308 A FR384308 A FR 384308A FR 384308D A FR384308D A FR 384308DA FR 384308 A FR384308 A FR 384308A
- 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
- G01C17/04—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 |
---|---|---|---|
SE384308X | 1906-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR384308A true FR384308A (fr) | 1908-04-04 |
Family
ID=1430260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR384308D Expired FR384308A (fr) | 1906-11-28 | 1907-11-23 | Boussole |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR384308A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552332A (en) * | 1945-01-30 | 1951-05-08 | American Machine & Metals | Compass |
US2636283A (en) * | 1951-03-06 | 1953-04-28 | I D Watch Case Co Inc | Compass crystal for watches |
DE908918C (de) * | 1941-08-19 | 1954-04-12 | Emil Busch A G Optische Ind | Kompass mit Visiereinrichtung |
US2955357A (en) * | 1957-03-11 | 1960-10-11 | Uebelhardt Roger | Wrist watch |
-
1907
- 1907-11-23 FR FR384308D patent/FR384308A/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE908918C (de) * | 1941-08-19 | 1954-04-12 | Emil Busch A G Optische Ind | Kompass mit Visiereinrichtung |
US2552332A (en) * | 1945-01-30 | 1951-05-08 | American Machine & Metals | Compass |
US2636283A (en) * | 1951-03-06 | 1953-04-28 | I D Watch Case Co Inc | Compass crystal for watches |
US2955357A (en) * | 1957-03-11 | 1960-10-11 | Uebelhardt Roger | Wrist watch |
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