NL299130A - - Google Patents
Info
- Publication number
- NL299130A NL299130A NL299130DA NL299130A NL 299130 A NL299130 A NL 299130A NL 299130D A NL299130D A NL 299130DA NL 299130 A NL299130 A NL 299130A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D219/00—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
- C07D219/04—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
- C07D219/08—Nitrogen atoms
- C07D219/10—Nitrogen atoms attached in position 9
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D219/00—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
- C07D219/02—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems with only hydrogen, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D219/00—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
- C07D219/04—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
-
- 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
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Audible And Visible Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US316732A US2406734A (en) | 1940-02-01 | 1940-02-01 | Glide path beacon |
Publications (1)
Publication Number | Publication Date |
---|---|
NL299130A true NL299130A (de) |
Family
ID=23230405
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL299130D NL299130A (de) | 1940-02-01 | ||
NL136262D NL136262C (de) | 1940-02-01 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL136262D NL136262C (de) | 1940-02-01 |
Country Status (7)
Country | Link |
---|---|
US (1) | US2406734A (de) |
BE (1) | BE474311A (de) |
CH (1) | CH266918A (de) |
ES (1) | ES177861A1 (de) |
FR (1) | FR956486A (de) |
GB (1) | GB592571A (de) |
NL (2) | NL136262C (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713164A (en) * | 1945-05-21 | 1955-07-12 | Itt | Direction finding system |
US2527570A (en) * | 1947-12-01 | 1950-10-31 | Int Standard Electric Corp | Glide path system |
US2610321A (en) * | 1948-02-28 | 1952-09-09 | Int Standard Electric Corp | Glide path antenna |
US2539500A (en) * | 1948-02-28 | 1951-01-30 | Int Standard Electric Corp | Glide path and localizer system |
US3113310A (en) * | 1961-02-10 | 1963-12-03 | Avco Corp | Null scanning radar |
GB1062551A (en) * | 1963-04-26 | 1967-03-22 | Standard Telephones Cables Ltd | Radio guidance systems |
US3409890A (en) * | 1966-12-28 | 1968-11-05 | Univ Sydney | Landing system for aircraft |
US3716863A (en) * | 1970-08-06 | 1973-02-13 | American Nucleonics Corp | Instrument landing error correcting system |
-
0
- FR FR956486D patent/FR956486A/fr not_active Expired
- BE BE474311D patent/BE474311A/xx unknown
- NL NL299130D patent/NL299130A/xx unknown
- NL NL136262D patent/NL136262C/xx active
-
1940
- 1940-02-01 US US316732A patent/US2406734A/en not_active Expired - Lifetime
-
1943
- 1943-11-26 GB GB19827/43A patent/GB592571A/en not_active Expired
-
1947
- 1947-02-25 CH CH266918D patent/CH266918A/de unknown
- 1947-05-03 ES ES0177861A patent/ES177861A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB592571A (en) | 1947-09-23 |
CH266918A (de) | 1950-02-28 |
FR956486A (de) | 1950-02-02 |
ES177861A1 (es) | 1947-06-16 |
NL136262C (de) | |
BE474311A (de) | |
US2406734A (en) | 1946-09-03 |