FR957959A - - Google Patents
Info
- Publication number
- FR957959A FR957959A FR957959DA FR957959A FR 957959 A FR957959 A FR 957959A FR 957959D A FR957959D A FR 957959DA FR 957959 A FR957959 A FR 957959A
- Authority
- FR
- France
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH212672T | 1940-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR957959A true FR957959A (de) | 1950-03-02 |
Family
ID=4447899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR957959D Expired FR957959A (de) | 1940-08-27 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH212672A (de) |
| FR (1) | FR957959A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1017375B (de) * | 1953-11-16 | 1957-10-10 | Jean Piochet | Abhoervorrichtung zum Auffinden von Fluessigkeitsabfluessen |
| US3138793A (en) * | 1961-03-29 | 1964-06-23 | Philco Corp | Electric circuit control unit |
-
0
- FR FR957959D patent/FR957959A/fr not_active Expired
-
1940
- 1940-01-22 CH CH212672D patent/CH212672A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH212672A (de) | 1940-12-15 |