BE445387A - - Google Patents
Info
- Publication number
- BE445387A BE445387A BE445387DA BE445387A BE 445387 A BE445387 A BE 445387A BE 445387D A BE445387D A BE 445387DA BE 445387 A BE445387 A BE 445387A
- 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 |
|---|---|---|---|
| DE229871X | 1941-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE445387A true BE445387A (xx) |
Family
ID=5868041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE445387D BE445387A (xx) | 1941-05-10 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE445387A (xx) |
| CH (1) | CH229871A (xx) |
| FR (1) | FR881410A (xx) |
| NL (1) | NL63653C (xx) |
-
0
- NL NL63653D patent/NL63653C/xx active
- BE BE445387D patent/BE445387A/xx unknown
-
1942
- 1942-04-07 CH CH229871D patent/CH229871A/de unknown
- 1942-04-21 FR FR881410D patent/FR881410A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR881410A (fr) | 1943-04-23 |
| CH229871A (de) | 1943-11-30 |
| NL63653C (xx) |