NL33422C - - Google Patents
Info
- Publication number
- NL33422C NL33422C NL33422DA NL33422C NL 33422 C NL33422 C NL 33422C NL 33422D A NL33422D A NL 33422DA NL 33422 C NL33422 C NL 33422C
- 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)
- Support Of Aerials (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE380385X | 1931-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL33422C true NL33422C (fr) |
Family
ID=3868695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL33422D NL33422C (fr) | 1931-04-03 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1947326A (fr) |
| DE (1) | DE586460C (fr) |
| FR (1) | FR734550A (fr) |
| GB (1) | GB380385A (fr) |
| NL (1) | NL33422C (fr) |
-
0
- NL NL33422D patent/NL33422C/xx active
-
1931
- 1931-05-29 DE DEB150283D patent/DE586460C/de not_active Expired
-
1932
- 1932-03-31 US US602350A patent/US1947326A/en not_active Expired - Lifetime
- 1932-04-02 FR FR734550D patent/FR734550A/fr not_active Expired
- 1932-04-02 GB GB9514/32A patent/GB380385A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1947326A (en) | 1934-02-13 |
| DE586460C (de) | 1933-10-21 |
| FR734550A (fr) | 1932-10-24 |
| GB380385A (en) | 1932-09-15 |