BE434871A - - Google Patents
Info
- Publication number
- BE434871A BE434871A BE434871DA BE434871A BE 434871 A BE434871 A BE 434871A BE 434871D A BE434871D A BE 434871DA BE 434871 A BE434871 A BE 434871A
- 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR847453T | 1938-07-30 | ||
| FR50114T | 1938-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE434871A true BE434871A (fi) |
Family
ID=26182764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE434871D BE434871A (fi) | 1938-07-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2272611A (fi) |
| BE (1) | BE434871A (fi) |
| CH (1) | CH231919A (fi) |
| FR (2) | FR847453A (fi) |
| GB (1) | GB529288A (fi) |
| NL (1) | NL54453C (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2539594A (en) * | 1948-07-17 | 1951-01-30 | Robert H Rines | System and method of communication |
| US2892190A (en) * | 1954-12-06 | 1959-06-23 | Gasaccumulator Svenska Ab | Arrangement in directed radio beacons |
-
0
- BE BE434871D patent/BE434871A/xx unknown
- NL NL54453D patent/NL54453C/xx active
-
1938
- 1938-06-14 FR FR847453D patent/FR847453A/fr not_active Expired
- 1938-07-30 FR FR50114D patent/FR50114E/fr not_active Expired
-
1939
- 1939-05-26 GB GB15697/39A patent/GB529288A/en not_active Expired
- 1939-06-13 CH CH231919D patent/CH231919A/de unknown
- 1939-06-14 US US279026A patent/US2272611A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2272611A (en) | 1942-02-10 |
| FR50114E (fr) | 1939-12-13 |
| CH231919A (de) | 1944-04-30 |
| NL54453C (fi) | |
| FR847453A (fr) | 1939-10-10 |
| GB529288A (en) | 1940-11-18 |