NL59218C - - Google Patents
Info
- Publication number
- NL59218C NL59218C NL59218DA NL59218C NL 59218 C NL59218 C NL 59218C NL 59218D A NL59218D A NL 59218DA NL 59218 C NL59218 C NL 59218C
- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE546341X | 1940-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL59218C true NL59218C (da) |
Family
ID=20311697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL59218D NL59218C (da) | 1940-01-04 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2309068A (da) |
| DE (1) | DE865328C (da) |
| GB (1) | GB546341A (da) |
| NL (1) | NL59218C (da) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2582894A (en) * | 1945-07-26 | 1952-01-15 | Williams Frederic Calland | Wireless beacon system |
| US2790970A (en) * | 1951-01-04 | 1957-04-30 | Sprague Electric Co | Audio frequency signal transfer control circuits |
| US2782304A (en) * | 1952-02-13 | 1957-02-19 | British Tabulating Mach Co Ltd | Electrical impulse generators |
| US2815442A (en) * | 1955-06-23 | 1957-12-03 | Ross A Davis | Sequential coupler for radio frequency circuits or the like |
| US3172023A (en) * | 1959-10-08 | 1965-03-02 | Benjamin P Blasingame | Variable capacitor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR686863A (fr) * | 1930-10-18 | 1930-07-31 | Radio déphaseur | |
| AT149117B (de) * | 1935-03-06 | 1937-04-10 | Telefunken Gmbh | Modulationseinrichtung. |
| GB503428A (en) * | 1936-11-26 | 1939-04-06 | Aga Baltic Radio Aktiebolag | Improvements relating to phase displacing systems for oscillatory directional radio transmitters, receivers or the like |
-
0
- NL NL59218D patent/NL59218C/xx active
-
1940
- 1940-12-11 US US369579A patent/US2309068A/en not_active Expired - Lifetime
- 1940-12-22 DE DEA1936D patent/DE865328C/de not_active Expired
-
1941
- 1941-01-03 GB GB115/41A patent/GB546341A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE865328C (de) | 1953-02-02 |
| GB546341A (en) | 1942-07-08 |
| US2309068A (en) | 1943-01-19 |