BE475387A - - Google Patents
Info
- Publication number
- BE475387A BE475387A BE475387DA BE475387A BE 475387 A BE475387 A BE 475387A BE 475387D A BE475387D A BE 475387DA BE 475387 A BE475387 A BE 475387A
- Authority
- BE
- Belgium
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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2538/40A GB579042A (en) | 1940-02-09 | 1940-02-09 | Improvements relating to radio direction finding equipments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE475387A true BE475387A (ja�@�@) |
Family
ID=9741329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE475387D BE475387A (ja�@�@) | 1940-02-09 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2423064A (ja�@�@) |
| BE (1) | BE475387A (ja�@�@) |
| FR (1) | FR937838A (ja�@�@) |
| GB (1) | GB579042A (ja�@�@) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL26887C (ja�@�@) * | 1928-11-19 |
-
0
- BE BE475387D patent/BE475387A/xx unknown
-
1940
- 1940-02-09 GB GB2538/40A patent/GB579042A/en not_active Expired
-
1942
- 1942-11-23 US US466654A patent/US2423064A/en not_active Expired - Lifetime
-
1946
- 1946-12-12 FR FR937838D patent/FR937838A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2423064A (en) | 1947-06-24 |
| FR937838A (fr) | 1948-08-27 |
| GB579042A (en) | 1946-07-22 |