FR524108A - Apparatus for underwater telegraphy - Google Patents
Apparatus for underwater telegraphyInfo
- Publication number
- FR524108A FR524108A FR524108A FR524108DA FR524108A FR 524108 A FR524108 A FR 524108A FR 524108 A FR524108 A FR 524108A FR 524108D A FR524108D A FR 524108DA FR 524108 A FR524108 A FR 524108A
- Authority
- FR
- France
- Prior art keywords
- telegraphy
- underwater
- underwater telegraphy
- 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 |
---|---|---|---|
FR524108T | 1915-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR524108A true FR524108A (en) | 1921-08-30 |
Family
ID=8919061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR524108A Expired FR524108A (en) | 1915-05-12 | 1915-05-12 | Apparatus for underwater telegraphy |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR524108A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744965C (en) * | 1934-12-13 | 1944-02-22 | Heinrich List Dipl Ing | Electromagnetic oscillating armature motor |
DE748667C (en) * | 1935-03-07 | 1944-11-07 | Electromagnetic oscillating armature motor |
-
1915
- 1915-05-12 FR FR524108A patent/FR524108A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744965C (en) * | 1934-12-13 | 1944-02-22 | Heinrich List Dipl Ing | Electromagnetic oscillating armature motor |
DE748667C (en) * | 1935-03-07 | 1944-11-07 | Electromagnetic oscillating armature motor |
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