FR847453A - Directional air networks - Google Patents
Directional air networksInfo
- Publication number
- FR847453A FR847453A FR847453DA FR847453A FR 847453 A FR847453 A FR 847453A FR 847453D A FR847453D A FR 847453DA FR 847453 A FR847453 A FR 847453A
- Authority
- FR
- France
- Prior art keywords
- directional air
- air networks
- networks
- directional
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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 |
---|---|---|---|
FR50114T | 1938-07-30 | ||
FR847453T | 1938-07-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR847453A true FR847453A (en) | 1939-10-10 |
Family
ID=26182764
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR847453D Expired FR847453A (en) | 1938-07-30 | 1938-06-14 | Directional air networks |
FR50114D Expired FR50114E (en) | 1938-07-30 | 1938-07-30 | Directional air networks |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR50114D Expired FR50114E (en) | 1938-07-30 | 1938-07-30 | Directional air networks |
Country Status (6)
Country | Link |
---|---|
US (1) | US2272611A (en) |
BE (1) | BE434871A (en) |
CH (1) | CH231919A (en) |
FR (2) | FR847453A (en) |
GB (1) | GB529288A (en) |
NL (1) | NL54453C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2539594A (en) * | 1948-07-17 | 1951-01-30 | Robert H Rines | System and method of communication |
US2892190A (en) * | 1954-12-06 | 1959-06-23 | Gasaccumulator Svenska Ab | Arrangement in directed radio beacons |
-
0
- BE BE434871D patent/BE434871A/xx unknown
- NL NL54453D patent/NL54453C/xx active
-
1938
- 1938-06-14 FR FR847453D patent/FR847453A/en not_active Expired
- 1938-07-30 FR FR50114D patent/FR50114E/en not_active Expired
-
1939
- 1939-05-26 GB GB15697/39A patent/GB529288A/en not_active Expired
- 1939-06-13 CH CH231919D patent/CH231919A/en unknown
- 1939-06-14 US US279026A patent/US2272611A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL54453C (en) | |
US2272611A (en) | 1942-02-10 |
CH231919A (en) | 1944-04-30 |
FR50114E (en) | 1939-12-13 |
GB529288A (en) | 1940-11-18 |
BE434871A (en) |
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