FR978236A - Appareil avertisseur sonore pneumatique - Google Patents
Appareil avertisseur sonore pneumatiqueInfo
- Publication number
- FR978236A FR978236A FR978236DA FR978236A FR 978236 A FR978236 A FR 978236A FR 978236D A FR978236D A FR 978236DA FR 978236 A FR978236 A FR 978236A
- Authority
- FR
- France
- Prior art keywords
- horn device
- pneumatic horn
- pneumatic
- 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
- 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
- G10K9/04—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 by compressed gases, e.g. compressed air
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT978236X | 1948-01-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR978236A true FR978236A (fr) | 1951-04-11 |
Family
ID=11332831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR978236D Expired FR978236A (fr) | 1948-01-05 | 1948-12-27 | Appareil avertisseur sonore pneumatique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR978236A (fr) |
-
1948
- 1948-12-27 FR FR978236D patent/FR978236A/fr not_active Expired
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