BE414648A - - Google Patents
Info
- Publication number
- BE414648A BE414648A BE414648DA BE414648A BE 414648 A BE414648 A BE 414648A BE 414648D A BE414648D A BE 414648DA BE 414648 A BE414648 A BE 414648A
- 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)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE408321X | 1932-01-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE414648A true BE414648A (fr) |
Family
ID=6422284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE414648D BE414648A (fr) | 1932-01-06 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2093885A (fr) |
| BE (1) | BE414648A (fr) |
| FR (1) | FR742314A (fr) |
| GB (1) | GB408321A (fr) |
| NL (1) | NL68362C (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2549860A (en) * | 1936-09-10 | 1951-04-24 | Swanson Mark | Method of and means for indicating a chosen area |
| BE474949A (fr) * | 1942-03-10 | |||
| US2478734A (en) * | 1944-04-29 | 1949-08-09 | Sperry Corp | Signal detecting system |
| US2489615A (en) * | 1947-09-13 | 1949-11-29 | Hazeltine Research Inc | Radio aid to air navigation |
-
0
- BE BE414648D patent/BE414648A/xx unknown
- FR FR742314D patent/FR742314A/fr not_active Expired
- NL NL68362D patent/NL68362C/xx active
-
1932
- 1932-10-07 GB GB27941/32A patent/GB408321A/en not_active Expired
- 1932-12-20 US US648080A patent/US2093885A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2093885A (en) | 1937-09-21 |
| FR742314A (fr) | 1933-03-04 |
| NL68362C (fr) | |
| GB408321A (en) | 1934-04-09 |