NL22041C - - Google Patents
Info
- Publication number
- NL22041C NL22041C NL22041DA NL22041C NL 22041 C NL22041 C NL 22041C NL 22041D A NL22041D A NL 22041DA NL 22041 C NL22041 C NL 22041C
- 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
- G01S1/72—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 ultrasonic, sonic or infrasonic 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)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW71568D DE463354C (de) | 1926-01-28 | 1926-01-28 | Unterwasser-Schallempfaenger mit in der Bordwand des Schiffs einsetzbarem, wasserdichtem Gehaeuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL22041C true NL22041C (ja�@�@) |
Family
ID=7608926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL22041D NL22041C (ja�@�@) | 1926-01-28 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE463354C (ja�@�@) |
| FR (1) | FR610153A (ja�@�@) |
| NL (1) | NL22041C (ja�@�@) |
-
0
- NL NL22041D patent/NL22041C/xx active
-
1926
- 1926-01-27 FR FR610153D patent/FR610153A/fr not_active Expired
- 1926-01-28 DE DEW71568D patent/DE463354C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR610153A (fr) | 1926-08-31 |
| DE463354C (de) | 1928-08-02 |