FR1056478A - - Google Patents
Info
- Publication number
- FR1056478A FR1056478A FR1056478DA FR1056478A FR 1056478 A FR1056478 A FR 1056478A FR 1056478D A FR1056478D A FR 1056478DA FR 1056478 A FR1056478 A FR 1056478A
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K5/00—Whistles
- G10K5/02—Ultrasonic whistles
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1056478A true FR1056478A (de) | 1954-02-26 |
Family
ID=1567738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1056478D Expired FR1056478A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1056478A (de) |
-
0
- FR FR1056478D patent/FR1056478A/fr not_active Expired