NL31538C - - Google Patents
Info
- Publication number
- NL31538C NL31538C NL31538DA NL31538C NL 31538 C NL31538 C NL 31538C NL 31538D A NL31538D A NL 31538DA NL 31538 C NL31538 C NL 31538C
- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE525749T | 1930-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL31538C true NL31538C (en:Method) |
Family
ID=34085430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL31538D NL31538C (en:Method) | 1930-01-16 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE525749C (en:Method) |
| FR (1) | FR709259A (en:Method) |
| NL (1) | NL31538C (en:Method) |
-
0
- NL NL31538D patent/NL31538C/xx active
-
1930
- 1930-01-16 DE DE1930525749D patent/DE525749C/de not_active Expired
-
1931
- 1931-01-13 FR FR709259D patent/FR709259A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE525749C (de) | 1931-05-28 |
| FR709259A (fr) | 1931-08-05 |