FR562248A - Underwater listening device device with water chamber allowing the device to be applied directly against the plating of ships - Google Patents
Underwater listening device device with water chamber allowing the device to be applied directly against the plating of shipsInfo
- Publication number
- FR562248A FR562248A FR562248DA FR562248A FR 562248 A FR562248 A FR 562248A FR 562248D A FR562248D A FR 562248DA FR 562248 A FR562248 A FR 562248A
- Authority
- FR
- France
- Prior art keywords
- ships
- plating
- applied directly
- water chamber
- directly against
- 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 |
---|---|---|---|
FR562248T | 1922-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR562248A true FR562248A (en) | 1923-11-07 |
Family
ID=8944162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR562248D Expired FR562248A (en) | 1922-04-11 | 1922-04-11 | Underwater listening device device with water chamber allowing the device to be applied directly against the plating of ships |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR562248A (en) |
-
1922
- 1922-04-11 FR FR562248D patent/FR562248A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR562248A (en) | Underwater listening device device with water chamber allowing the device to be applied directly against the plating of ships | |
FR569253A (en) | Apparatus for the treatment of water contained in the holds of ships | |
FR721000A (en) | Rescue submarine for working underwater | |
FR544840A (en) | Valve water intake device | |
FR564881A (en) | Device for varying the capacity of the explosion chamber in guns | |
FR578474A (en) | Combined float and slide device allowing movement on the water | |
FR569227A (en) | Improvements to the agitation mechanisms of water freezing brine tanks | |
FR509015A (en) | Propeller water meter | |
FR530726A (en) | Water spray device, to produce an artificial dew | |
FR567293A (en) | Waterproof water tank pot | |
FR557789A (en) | Natural flower holder with water tank | |
FR544498A (en) | Foaming and washing soap with sea water | |
FR26968E (en) | Water meter | |
FR520126A (en) | Food water heater | |
FR503022A (en) | Water or steam tap | |
FR553983A (en) | Tray with adjustable angle of incidence intended to ensure different buoyancy for all fishing nets dragged in the water | |
FR535792A (en) | Bowl or decorative bowl with miniature water jet | |
FR498273A (en) | Water navigation mode | |
FR619227A (en) | Water chamber device with equilibrium chimney | |
FR575805A (en) | Cutting torch underwater | |
FR571231A (en) | Apparatus for the electrolysis of water | |
FR544847A (en) | Valve water intake device | |
FR553744A (en) | Apparatus for the electrolysis of water | |
FR913271A (en) | Adjusting the water level in the steam generators | |
FR571770A (en) | Improvements to devices for detecting sounds underwater |