NL53219C - - Google Patents
Info
- Publication number
- NL53219C NL53219C NL53219DA NL53219C NL 53219 C NL53219 C NL 53219C NL 53219D A NL53219D A NL 53219DA NL 53219 C NL53219 C NL 53219C
- 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)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207221X | 1937-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL53219C true NL53219C (en) |
Family
ID=5793600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL53219D NL53219C (en) | 1937-07-08 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2220183A (en) |
| CH (1) | CH207221A (en) |
| GB (1) | GB501251A (en) |
| NL (1) | NL53219C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2842763A (en) * | 1942-03-12 | 1958-07-08 | Sperry Rand Corp | Pulse receiving systems |
| US2434915A (en) * | 1942-05-11 | 1948-01-27 | Standard Telephones Cables Ltd | Radio beacon system for bearing determination |
| BE480704A (en) * | 1943-07-21 | |||
| US2464822A (en) * | 1943-08-16 | 1949-03-22 | Sperry Corp | Indicating device |
| US2644088A (en) * | 1945-03-22 | 1953-06-30 | Us Sec War | Radar power supply system |
-
0
- NL NL53219D patent/NL53219C/xx active
-
1938
- 1938-06-25 US US215759A patent/US2220183A/en not_active Expired - Lifetime
- 1938-06-29 CH CH207221D patent/CH207221A/en unknown
- 1938-07-08 GB GB20307/38A patent/GB501251A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH207221A (en) | 1939-10-15 |
| GB501251A (en) | 1939-02-23 |
| US2220183A (en) | 1940-11-05 |