FR496394A - Système de communication sous-marines - Google Patents
Système de communication sous-marinesInfo
- Publication number
- FR496394A FR496394A FR496394DA FR496394A FR 496394 A FR496394 A FR 496394A FR 496394D A FR496394D A FR 496394DA FR 496394 A FR496394 A FR 496394A
- Authority
- FR
- France
- Prior art keywords
- communication system
- underwater communication
- underwater
- communication
- Prior art date
- 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
- G01S1/72—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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT496394X | 1917-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR496394A true FR496394A (fr) | 1919-11-05 |
Family
ID=1531827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR496394D Expired FR496394A (fr) | 1917-03-17 | 1918-04-02 | Système de communication sous-marines |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR496394A (fr) |
-
1918
- 1918-04-02 FR FR496394D patent/FR496394A/fr not_active Expired
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