BE444456A - - Google Patents
Info
- Publication number
- BE444456A BE444456A BE444456DA BE444456A BE 444456 A BE444456 A BE 444456A BE 444456D A BE444456D A BE 444456DA BE 444456 A BE444456 A BE 444456A
- 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 |
|---|---|---|---|
| DE224240X | 1940-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE444456A true BE444456A (xx) | 1942-03-31 |
Family
ID=5854852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE444456D BE444456A (xx) | 1940-11-01 | 1942-02-12 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE444456A (xx) |
| CH (1) | CH224240A (xx) |
| DE (1) | DE747034C (xx) |
| FR (1) | FR879495A (xx) |
| NL (1) | NL62837C (xx) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT82879B (de) * | 1914-06-24 | 1921-02-25 | Ettore Bellini | Einrichtung für gerichtete drahtlose Telegraphie und Telephonie. |
-
1940
- 1940-11-01 DE DEL102242D patent/DE747034C/de not_active Expired
-
1941
- 1941-12-30 CH CH224240D patent/CH224240A/de unknown
-
1942
- 1942-01-28 NL NL104530A patent/NL62837C/xx active
- 1942-02-12 BE BE444456D patent/BE444456A/xx unknown
- 1942-02-19 FR FR879495D patent/FR879495A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE747034C (de) | 1944-09-04 |
| NL62837C (xx) | 1949-04-15 |
| FR879495A (fr) | 1943-02-24 |
| CH224240A (de) | 1942-11-15 |