NL50910C - - Google Patents
Info
- Publication number
- NL50910C NL50910C NL50910DA NL50910C NL 50910 C NL50910 C NL 50910C NL 50910D A NL50910D A NL 50910DA NL 50910 C NL50910 C NL 50910C
- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE205224X | 1937-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL50910C true NL50910C (en:Method) |
Family
ID=5786018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL50910D NL50910C (en:Method) | 1937-04-14 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2208413A (en:Method) |
| CH (1) | CH205224A (en:Method) |
| FR (1) | FR836495A (en:Method) |
| GB (1) | GB495624A (en:Method) |
| NL (1) | NL50910C (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE758471C (de) * | 1939-05-23 | 1953-10-19 | Telefunken Gmbh | Antennenanordnung |
| US2485457A (en) * | 1944-10-20 | 1949-10-18 | Bell Telephone Labor Inc | Antenna system |
| US4812855A (en) * | 1985-09-30 | 1989-03-14 | The Boeing Company | Dipole antenna with parasitic elements |
-
0
- NL NL50910D patent/NL50910C/xx active
-
1938
- 1938-04-02 CH CH205224D patent/CH205224A/de unknown
- 1938-04-11 FR FR836495D patent/FR836495A/fr not_active Expired
- 1938-04-12 GB GB11218/38A patent/GB495624A/en not_active Expired
- 1938-04-21 US US203253A patent/US2208413A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH205224A (de) | 1939-06-15 |
| FR836495A (fr) | 1939-01-18 |
| GB495624A (en) | 1938-11-16 |
| US2208413A (en) | 1940-07-16 |