NL55148C - - Google Patents
Info
- Publication number
- NL55148C NL55148C NL55148DA NL55148C NL 55148 C NL55148 C NL 55148C NL 55148D A NL55148D A NL 55148DA NL 55148 C NL55148 C NL 55148C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR519462X | 1937-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL55148C true NL55148C (https=) |
Family
ID=8916411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL55148D NL55148C (https=) | 1937-09-17 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB519462A (https=) |
| NL (1) | NL55148C (https=) |
-
0
- NL NL55148D patent/NL55148C/xx active
-
1938
- 1938-09-13 GB GB21997/39A patent/GB519462A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB519462A (en) | 1940-03-27 |