FR475763A - Avertisseur parlant - Google Patents
Avertisseur parlantInfo
- Publication number
- FR475763A FR475763A FR475763DA FR475763A FR 475763 A FR475763 A FR 475763A FR 475763D A FR475763D A FR 475763DA FR 475763 A FR475763 A FR 475763A
- Authority
- FR
- France
- Prior art keywords
- horn
- speaking
- speaking horn
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR475763T | 1914-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR475763A true FR475763A (fr) | 1915-06-14 |
Family
ID=1513624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR475763D Expired FR475763A (fr) | 1914-03-16 | 1914-03-16 | Avertisseur parlant |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR475763A (fr) |
-
1914
- 1914-03-16 FR FR475763D patent/FR475763A/fr not_active Expired
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