BE474937A - - Google Patents
Info
- Publication number
- BE474937A BE474937A BE474937DA BE474937A BE 474937 A BE474937 A BE 474937A BE 474937D A BE474937D A BE 474937DA BE 474937 A BE474937 A BE 474937A
- 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)
- Traffic Control Systems (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US260893XA | 1945-04-23 | 1945-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474937A true BE474937A (ja�@�@) |
Family
ID=21829826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474937D BE474937A (ja�@�@) | 1945-04-23 |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT163391B (ja�@�@) |
| BE (1) | BE474937A (ja�@�@) |
| CH (1) | CH260893A (ja�@�@) |
| DK (1) | DK71465C (ja�@�@) |
| GB (1) | GB628961A (ja�@�@) |
-
0
- BE BE474937D patent/BE474937A/xx unknown
-
1946
- 1946-03-22 GB GB893046A patent/GB628961A/en not_active Expired
-
1947
- 1947-06-28 CH CH260893D patent/CH260893A/de unknown
- 1947-08-23 DK DK320347A patent/DK71465C/da active
- 1947-09-10 AT AT163391D patent/AT163391B/de active
Also Published As
| Publication number | Publication date |
|---|---|
| AT163391B (de) | 1949-06-25 |
| GB628961A (en) | 1949-09-08 |
| CH260893A (de) | 1949-04-15 |
| DK71465C (da) | 1950-09-11 |