BE436719A - - Google Patents
Info
- Publication number
- BE436719A BE436719A BE436719DA BE436719A BE 436719 A BE436719 A BE 436719A BE 436719D A BE436719D A BE 436719DA BE 436719 A BE436719 A BE 436719A
- Authority
- BE
- Belgium
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE231658X | 1938-11-09 | ||
| CH228970T | 1939-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE436719A true BE436719A (forum.php) |
Family
ID=25727287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE436719D BE436719A (forum.php) | 1938-11-09 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2235055A (forum.php) |
| BE (1) | BE436719A (forum.php) |
| CH (1) | CH231658A (forum.php) |
| FR (1) | FR51283E (forum.php) |
| NL (1) | NL53288C (forum.php) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2620471A (en) * | 1945-03-28 | 1952-12-02 | Rca Corp | Radio direction finder |
-
0
- BE BE436719D patent/BE436719A/xx unknown
-
1939
- 1939-09-20 CH CH231658D patent/CH231658A/de unknown
- 1939-09-21 NL NL95295A patent/NL53288C/xx active
- 1939-11-09 US US303509A patent/US2235055A/en not_active Expired - Lifetime
-
1940
- 1940-12-27 FR FR51283D patent/FR51283E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2235055A (en) | 1941-03-18 |
| NL53288C (nl) | 1942-10-15 |
| FR51283E (fr) | 1942-02-18 |
| CH231658A (de) | 1944-03-31 |