NL50621C - - Google Patents
Info
- Publication number
- NL50621C NL50621C NL50621DA NL50621C NL 50621 C NL50621 C NL 50621C NL 50621D A NL50621D A NL 50621DA NL 50621 C NL50621 C NL 50621C
- 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)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE206463X | 1937-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL50621C true NL50621C (xx) |
Family
ID=5792664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL50621D NL50621C (xx) | 1937-04-16 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH206463A (xx) |
| FR (1) | FR836635A (xx) |
| GB (1) | GB494822A (xx) |
| NL (1) | NL50621C (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2539594A (en) * | 1948-07-17 | 1951-01-30 | Robert H Rines | System and method of communication |
-
0
- NL NL50621D patent/NL50621C/xx active
-
1938
- 1938-04-08 GB GB10859/38A patent/GB494822A/en not_active Expired
- 1938-04-11 CH CH206463D patent/CH206463A/de unknown
- 1938-04-14 FR FR836635D patent/FR836635A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH206463A (de) | 1939-08-15 |
| GB494822A (en) | 1938-11-01 |
| FR836635A (fr) | 1939-01-23 |