FR741872A - - Google Patents
Info
- Publication number
- FR741872A FR741872A FR741872DA FR741872A FR 741872 A FR741872 A FR 741872A FR 741872D A FR741872D A FR 741872DA FR 741872 A FR741872 A FR 741872A
- Authority
- FR
- France
- 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)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
- Toys (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL81003D DE577350C (en) | 1932-04-20 | 1932-04-20 | Send arrangement to achieve course lines |
| DEL85653D DE616026C (en) | 1932-04-20 | 1934-04-07 | Send arrangement for achieving course lines according to |
| DE2151922X | 1934-10-05 | ||
| DEL90023D DE659836C (en) | 1934-04-07 | 1936-03-22 | Send arrangement to achieve course lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR741872A true FR741872A (en) | 1933-02-22 |
Family
ID=34069174
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR741872D Expired FR741872A (en) | 1932-04-20 | ||
| FR44877D Expired FR44877E (en) | 1932-04-20 | 1934-05-17 | Transmitter device for electric waves, and in particular for ultra-short waves |
| FR44879D Expired FR44879E (en) | 1932-04-20 | 1934-05-18 | Transmitter device for electric waves and in particular for ultra-short waves |
| FR45994D Expired FR45994E (en) | 1932-04-20 | 1935-04-02 | Transmitter device for electric waves and in particular for ultra-short waves |
| FR795983D Expired FR795983A (en) | 1932-04-20 | 1935-10-05 | Receiving apparatus for determining direction by means of electric waves, and in particular ultra-short waves |
| FR47380D Expired FR47380E (en) | 1932-04-20 | 1936-05-14 | Transmitter device for electric waves and in particular for ultra-short waves |
| FR47701D Expired FR47701E (en) | 1932-04-20 | 1936-10-07 | Transmitter device for electric waves and in particular for ultra-short waves |
Family Applications After (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR44877D Expired FR44877E (en) | 1932-04-20 | 1934-05-17 | Transmitter device for electric waves, and in particular for ultra-short waves |
| FR44879D Expired FR44879E (en) | 1932-04-20 | 1934-05-18 | Transmitter device for electric waves and in particular for ultra-short waves |
| FR45994D Expired FR45994E (en) | 1932-04-20 | 1935-04-02 | Transmitter device for electric waves and in particular for ultra-short waves |
| FR795983D Expired FR795983A (en) | 1932-04-20 | 1935-10-05 | Receiving apparatus for determining direction by means of electric waves, and in particular ultra-short waves |
| FR47380D Expired FR47380E (en) | 1932-04-20 | 1936-05-14 | Transmitter device for electric waves and in particular for ultra-short waves |
| FR47701D Expired FR47701E (en) | 1932-04-20 | 1936-10-07 | Transmitter device for electric waves and in particular for ultra-short waves |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US2028510A (en) |
| BE (1) | BE414649A (en) |
| DE (2) | DE577350C (en) |
| FR (7) | FR44877E (en) |
| GB (5) | GB405727A (en) |
| NL (3) | NL38464C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2229733A (en) * | 1938-05-13 | 1941-01-28 | Internat Telephone Dev Co Inc | Antenna structure |
| DE761950C (en) * | 1941-05-10 | 1954-01-18 | Lorenz C Ag | Procedure for course setting by means of frequency-modulated radiation |
| US2439663A (en) * | 1942-02-26 | 1948-04-13 | Hazeltine Research Inc | System for navigating aircraft |
| US2492354A (en) * | 1945-04-09 | 1949-12-27 | Standard Telephones Cables Ltd | Dipole antenna direction finder |
| US2831189A (en) * | 1945-06-23 | 1958-04-15 | Robert J Kemper | Wide band homing system |
-
0
- NL NL41765D patent/NL41765C/xx active
- FR FR741872D patent/FR741872A/fr not_active Expired
- BE BE414649D patent/BE414649A/xx unknown
- NL NL46080D patent/NL46080C/xx active
- NL NL38464D patent/NL38464C/xx active
-
1932
- 1932-04-20 DE DEL81003D patent/DE577350C/en not_active Expired
- 1932-09-02 GB GB24496/32A patent/GB405727A/en not_active Expired
- 1932-10-21 US US638907A patent/US2028510A/en not_active Expired - Lifetime
-
1934
- 1934-04-07 DE DEL85653D patent/DE616026C/en not_active Expired
- 1934-05-17 FR FR44877D patent/FR44877E/en not_active Expired
- 1934-05-18 FR FR44879D patent/FR44879E/en not_active Expired
- 1934-05-24 GB GB15541/34A patent/GB438804A/en not_active Expired
-
1935
- 1935-04-02 FR FR45994D patent/FR45994E/en not_active Expired
- 1935-04-02 US US14212A patent/US2072268A/en not_active Expired - Lifetime
- 1935-06-07 GB GB16597/35A patent/GB442193A/en not_active Expired
- 1935-10-04 US US43486A patent/US2151922A/en not_active Expired - Lifetime
- 1935-10-04 GB GB27460/35A patent/GB444005A/en not_active Expired
- 1935-10-05 FR FR795983D patent/FR795983A/en not_active Expired
-
1936
- 1936-05-14 FR FR47380D patent/FR47380E/en not_active Expired
- 1936-10-07 FR FR47701D patent/FR47701E/en not_active Expired
- 1936-10-09 GB GB27468/36A patent/GB472941A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL41765C (en) | |
| GB442193A (en) | 1936-02-04 |
| US2072268A (en) | 1937-03-02 |
| NL46080C (en) | |
| FR45994E (en) | 1936-01-17 |
| NL38464C (en) | |
| BE414649A (en) | |
| FR795983A (en) | 1936-03-26 |
| US2151922A (en) | 1939-03-28 |
| GB405727A (en) | 1934-02-15 |
| FR47701E (en) | 1937-06-22 |
| FR44877E (en) | 1935-04-24 |
| DE616026C (en) | 1935-07-18 |
| FR44879E (en) | 1935-04-24 |
| DE577350C (en) | 1933-05-30 |
| GB472941A (en) | 1937-10-04 |
| GB444005A (en) | 1936-03-11 |
| GB438804A (en) | 1935-11-25 |
| FR47380E (en) | 1937-03-25 |
| US2028510A (en) | 1936-01-21 |