BE435558A - - Google Patents
Info
- Publication number
- BE435558A BE435558A BE435558DA BE435558A BE 435558 A BE435558 A BE 435558A BE 435558D A BE435558D A BE 435558DA BE 435558 A BE435558 A BE 435558A
- 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
- G01S1/72—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 ultrasonic, sonic or infrasonic 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)
- Control Of Direct Current Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE541680X | 1938-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE435558A true BE435558A (en:Method) |
Family
ID=6559367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE435558D BE435558A (en:Method) | 1938-10-08 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE435558A (en:Method) |
| GB (1) | GB541680A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2567193A (en) * | 1945-08-07 | 1951-09-11 | Standard Telephones Cables Ltd | Indicator for direction finders |
-
0
- BE BE435558D patent/BE435558A/xx unknown
-
1939
- 1939-07-26 GB GB21769/39A patent/GB541680A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB541680A (en) | 1941-12-08 |