FR791184A - Single observation station acoustic altimeter - Google Patents
Single observation station acoustic altimeterInfo
- Publication number
- FR791184A FR791184A FR791184DA FR791184A FR 791184 A FR791184 A FR 791184A FR 791184D A FR791184D A FR 791184DA FR 791184 A FR791184 A FR 791184A
- Authority
- FR
- France
- Prior art keywords
- observation station
- single observation
- station acoustic
- altimeter
- acoustic altimeter
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS791184X | 1935-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR791184A true FR791184A (en) | 1935-12-05 |
Family
ID=5455549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR791184D Expired FR791184A (en) | 1935-01-30 | 1935-04-27 | Single observation station acoustic altimeter |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR791184A (en) |
-
1935
- 1935-04-27 FR FR791184D patent/FR791184A/en not_active Expired
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