NL54450C - - Google Patents
Info
- Publication number
- NL54450C NL54450C NL54450DA NL54450C NL 54450 C NL54450 C NL 54450C NL 54450D A NL54450D A NL 54450DA NL 54450 C NL54450 C NL 54450C
- Authority
- NL
- Netherlands
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)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2221946X | 1938-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL54450C true NL54450C (en:Method) |
Family
ID=7990872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL54450D NL54450C (en:Method) | 1938-06-22 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2221946A (en:Method) |
| BE (1) | BE434829A (en:Method) |
| FR (1) | FR855997A (en:Method) |
| NL (1) | NL54450C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2985876A (en) * | 1957-01-23 | 1961-05-23 | Marconi Wireless Telegraph Co | Aerial systems |
-
0
- NL NL54450D patent/NL54450C/xx active
- BE BE434829D patent/BE434829A/xx unknown
-
1939
- 1939-06-09 FR FR855997D patent/FR855997A/fr not_active Expired
- 1939-06-14 US US279010A patent/US2221946A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR855997A (fr) | 1940-05-24 |
| US2221946A (en) | 1940-11-19 |
| BE434829A (en:Method) |