NL19253C - - Google Patents
Info
- Publication number
- NL19253C NL19253C NL19253DA NL19253C NL 19253 C NL19253 C NL 19253C NL 19253D A NL19253D A NL 19253DA NL 19253 C NL19253 C NL 19253C
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US433714XA | 1923-12-22 | 1923-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL19253C true NL19253C (en) |
Family
ID=21926830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL19253D NL19253C (en) | 1923-12-22 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE433714C (en) |
| NL (1) | NL19253C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977678C (en) * | 1955-04-01 | 1968-04-04 | Siegfried Dr Phil Fahrentholz | Area echo sounder for displaying the current cross-section of a waterway |
| DE977290C (en) * | 1955-04-01 | 1965-10-07 | Siegfried Dr Fahrentholz | Display echo sounder device for measuring two perpendicular distances and their difference |
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0
- NL NL19253D patent/NL19253C/xx active
-
1924
- 1924-11-08 DE DES67596D patent/DE433714C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE433714C (en) | 1926-09-10 |