NL58720C - - Google Patents
Info
- Publication number
- NL58720C NL58720C NL58720DA NL58720C NL 58720 C NL58720 C NL 58720C NL 58720D A NL58720D A NL 58720DA NL 58720 C NL58720 C NL 58720C
- 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)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US270829A US2238965A (en) | 1939-04-29 | 1939-04-29 | Radio range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL58720C true NL58720C (es) |
Family
ID=23032969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL58720D NL58720C (es) | 1939-04-29 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2238965A (es) |
| NL (1) | NL58720C (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514351A (en) * | 1940-01-03 | 1950-07-04 | Rca Corp | Aircraft landing system employing lobe switching of radio beams |
| CH249408A (de) * | 1946-04-01 | 1947-06-30 | Patelhold Patentverwertung | Einrichtung zur Bestimmung der horizontalen Winkellage eines Empfängers. |
-
0
- NL NL58720D patent/NL58720C/xx active
-
1939
- 1939-04-29 US US270829A patent/US2238965A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2238965A (en) | 1941-04-22 |