FR2277395B3 - - Google Patents
Info
- Publication number
- FR2277395B3 FR2277395B3 FR7520649A FR7520649A FR2277395B3 FR 2277395 B3 FR2277395 B3 FR 2277395B3 FR 7520649 A FR7520649 A FR 7520649A FR 7520649 A FR7520649 A FR 7520649A FR 2277395 B3 FR2277395 B3 FR 2277395B3
- 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
- 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)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2147574 | 1974-07-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2277395A1 FR2277395A1 (fr) | 1976-01-30 |
FR2277395B3 true FR2277395B3 (no) | 1979-02-23 |
Family
ID=11182365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7520649A Granted FR2277395A1 (fr) | 1974-07-01 | 1975-07-01 | Unite acoustique pneumatique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2277395A1 (no) |
-
1975
- 1975-07-01 FR FR7520649A patent/FR2277395A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2277395A1 (fr) | 1976-01-30 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |