NL49886C - - Google Patents
Info
- Publication number
- NL49886C NL49886C NL49886DA NL49886C NL 49886 C NL49886 C NL 49886C NL 49886D A NL49886D A NL 49886DA NL 49886 C NL49886 C NL 49886C
- 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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207220X | 1937-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL49886C true NL49886C (en:Method) |
Family
ID=5793599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL49886D NL49886C (en:Method) | 1937-06-02 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH207220A (en:Method) |
| FR (1) | FR838775A (en:Method) |
| GB (1) | GB505405A (en:Method) |
| NL (1) | NL49886C (en:Method) |
-
0
- NL NL49886D patent/NL49886C/xx active
-
1938
- 1938-05-31 CH CH207220D patent/CH207220A/de unknown
- 1938-06-01 FR FR838775D patent/FR838775A/fr not_active Expired
- 1938-06-02 GB GB16527/38A patent/GB505405A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR838775A (fr) | 1939-03-15 |
| CH207220A (de) | 1939-10-15 |
| GB505405A (en) | 1939-05-10 |