FR1489027A - Course keeper - Google Patents
Course keeperInfo
- Publication number
- FR1489027A FR1489027A FR69001821A FR69001821A FR1489027A FR 1489027 A FR1489027 A FR 1489027A FR 69001821 A FR69001821 A FR 69001821A FR 69001821 A FR69001821 A FR 69001821A FR 1489027 A FR1489027 A FR 1489027A
- Authority
- FR
- France
- Prior art keywords
- keeper
- course
- course keeper
- 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
- G01C17/20—Observing the compass card or needle
- G01C17/26—Observing the compass card or needle using electric pick-offs for transmission to final indicator, e.g. photocell
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR69001821A FR1489027A (en) | 1965-12-30 | 1965-12-30 | Course keeper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR69001821A FR1489027A (en) | 1965-12-30 | 1965-12-30 | Course keeper |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1489027A true FR1489027A (en) | 1967-07-21 |
Family
ID=1585750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR69001821A Expired FR1489027A (en) | 1965-12-30 | 1965-12-30 | Course keeper |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1489027A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704047A4 (en) * | 1992-11-20 | 1995-11-09 | Kevin F Mcdermott | Direction indicator for navigation |
-
1965
- 1965-12-30 FR FR69001821A patent/FR1489027A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704047A4 (en) * | 1992-11-20 | 1995-11-09 | Kevin F Mcdermott | Direction indicator for navigation |
EP0704047A1 (en) * | 1992-11-20 | 1996-04-03 | MCDERMOTT, Kevin F. | Direction indicator for navigation |
US5655308A (en) * | 1992-11-20 | 1997-08-12 | Mcdermott; Kevin | Illuminating navigation device |
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