FR778716A - Avertisseur pneumatique - Google Patents
Avertisseur pneumatiqueInfo
- Publication number
- FR778716A FR778716A FR778716DA FR778716A FR 778716 A FR778716 A FR 778716A FR 778716D A FR778716D A FR 778716DA FR 778716 A FR778716 A FR 778716A
- Authority
- FR
- France
- Prior art keywords
- air horn
- horn
- air
- 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
- 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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR778716T | 1933-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR778716A true FR778716A (fr) | 1935-03-22 |
Family
ID=9202313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR778716D Expired FR778716A (fr) | 1933-12-09 | 1933-12-09 | Avertisseur pneumatique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR778716A (fr) |
-
1933
- 1933-12-09 FR FR778716D patent/FR778716A/fr not_active Expired
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