BE473668A - - Google Patents
Info
- Publication number
- BE473668A BE473668A BE473668DA BE473668A BE 473668 A BE473668 A BE 473668A BE 473668D A BE473668D A BE 473668DA BE 473668 A BE473668 A BE 473668A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US603689A US2436823A (en) | 1945-07-07 | 1945-07-07 | Course modifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473668A true BE473668A (pt) |
Family
ID=24416517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473668D BE473668A (pt) | 1945-07-07 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2436823A (pt) |
| BE (1) | BE473668A (pt) |
| FR (1) | FR938466A (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2676260A (en) * | 1949-12-03 | 1954-04-20 | Rca Corp | Frequency control system |
| GB987470A (en) * | 1962-06-13 | 1965-03-31 | Secr Aviation | Improvements in or relating to aircraft approach and landing systems |
-
0
- BE BE473668D patent/BE473668A/xx unknown
-
1945
- 1945-07-07 US US603689A patent/US2436823A/en not_active Expired - Lifetime
-
1946
- 1946-11-15 FR FR938466D patent/FR938466A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2436823A (en) | 1948-03-02 |
| FR938466A (fr) | 1948-09-16 |