BE473722A - - Google Patents
Info
- Publication number
- BE473722A BE473722A BE473722DA BE473722A BE 473722 A BE473722 A BE 473722A BE 473722D A BE473722D A BE 473722DA BE 473722 A BE473722 A BE 473722A
- 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)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB767043A GB593568A (en) | 1943-05-13 | Improvements in or relating to radio direction finders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473722A true BE473722A (pt) |
Family
ID=9837546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473722D BE473722A (pt) | 1943-05-13 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2449175A (pt) |
| BE (1) | BE473722A (pt) |
| CH (1) | CH254568A (pt) |
| FR (1) | FR931674A (pt) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2184306A (en) * | 1936-09-30 | 1939-12-26 | Geoffrey G Kruesi | Radio direction finder |
| US2156297A (en) * | 1936-09-30 | 1939-05-02 | Geoffrey G Kruesi | Radio compass |
| US2274546A (en) * | 1938-11-12 | 1942-02-24 | Rca Corp | Radio compass |
-
0
- BE BE473722D patent/BE473722A/xx unknown
-
1944
- 1944-07-24 US US546248A patent/US2449175A/en not_active Expired - Lifetime
-
1946
- 1946-05-04 CH CH254568D patent/CH254568A/de unknown
- 1946-07-30 FR FR931674D patent/FR931674A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH254568A (de) | 1948-05-15 |
| US2449175A (en) | 1948-09-14 |
| FR931674A (fr) | 1948-03-01 |