BE449909A - - Google Patents
Info
- Publication number
- BE449909A BE449909A BE449909DA BE449909A BE 449909 A BE449909 A BE 449909A BE 449909D A BE449909D A BE 449909DA BE 449909 A BE449909 A BE 449909A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE235306X | 1942-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE449909A true BE449909A (xx) |
Family
ID=5896183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE449909D BE449909A (xx) | 1942-05-23 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE449909A (xx) |
| CH (1) | CH235306A (xx) |
| FR (1) | FR892814A (xx) |
-
0
- BE BE449909D patent/BE449909A/xx unknown
-
1943
- 1943-03-04 CH CH235306D patent/CH235306A/de unknown
- 1943-03-24 FR FR892814D patent/FR892814A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR892814A (fr) | 1944-05-22 |
| CH235306A (de) | 1944-11-30 |