NL58739C - - Google Patents
Info
- Publication number
- NL58739C NL58739C NL58739DA NL58739C NL 58739 C NL58739 C NL 58739C NL 58739D A NL58739D A NL 58739DA NL 58739 C NL58739 C NL 58739C
- 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)
- Eyeglasses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE224238X | 1940-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL58739C true NL58739C (en) |
Family
ID=5854839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL58739D NL58739C (en) | 1940-07-31 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE442241A (en) |
| CH (1) | CH224238A (en) |
| FR (1) | FR874007A (en) |
| NL (1) | NL58739C (en) |
-
0
- BE BE442241D patent/BE442241A/fr unknown
- NL NL58739D patent/NL58739C/xx active
-
1941
- 1941-07-03 CH CH224238D patent/CH224238A/en unknown
- 1941-07-17 FR FR874007D patent/FR874007A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR874007A (en) | 1942-07-27 |
| BE442241A (en) | |
| CH224238A (en) | 1942-11-15 |