NL61931C - - Google Patents
Info
- Publication number
- NL61931C NL61931C NL61931DA NL61931C NL 61931 C NL61931 C NL 61931C NL 61931D A NL61931D A NL 61931DA NL 61931 C NL61931 C NL 61931C
- 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)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB257137X | 1939-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL61931C true NL61931C (de) |
Family
ID=10232073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL61931D NL61931C (de) | 1939-03-07 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH257137A (de) |
| NL (1) | NL61931C (de) |
-
0
- NL NL61931D patent/NL61931C/xx active
-
1946
- 1946-12-14 CH CH257137D patent/CH257137A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH257137A (de) | 1948-09-30 |