BE474057A - - Google Patents
Info
- Publication number
- BE474057A BE474057A BE474057DA BE474057A BE 474057 A BE474057 A BE 474057A BE 474057D A BE474057D A BE 474057DA BE 474057 A BE474057 A BE 474057A
- 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 |
|---|---|---|---|
| US316497A US2280514A (en) | 1940-01-31 | 1940-01-31 | Single line guiding beacon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474057A true BE474057A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=23229296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474057D BE474057A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1940-01-31 |
Country Status (4)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2462102A (en) * | 1945-08-02 | 1949-02-22 | Edwin J Istvan | Modulated reflecting-resonant target |
| US2483790A (en) * | 1945-11-27 | 1949-10-04 | Rca Corp | Radio beacon |
| US2512682A (en) * | 1946-05-31 | 1950-06-27 | Farnsworth Res Corp | Duplex antenna |
-
0
- BE BE474057D patent/BE474057A/xx unknown
-
1940
- 1940-01-31 US US316497A patent/US2280514A/en not_active Expired - Lifetime
-
1941
- 1941-01-31 GB GB1286/41A patent/GB545880A/en not_active Expired
-
1946
- 1946-02-26 FR FR970483D patent/FR970483A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB545880A (en) | 1942-06-17 |
| FR970483A (fr) | 1951-01-04 |
| US2280514A (en) | 1942-04-21 |