FR2177363A5 - - Google Patents
Info
- Publication number
- FR2177363A5 FR2177363A5 FR7309996A FR7309996A FR2177363A5 FR 2177363 A5 FR2177363 A5 FR 2177363A5 FR 7309996 A FR7309996 A FR 7309996A FR 7309996 A FR7309996 A FR 7309996A FR 2177363 A5 FR2177363 A5 FR 2177363A5
- 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
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Alarm Systems (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Emergency Alarm Devices (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23630772A | 1972-03-20 | 1972-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2177363A5 true FR2177363A5 (fr) | 1973-11-02 |
Family
ID=22888976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7309996A Expired FR2177363A5 (fr) | 1972-03-20 | 1973-03-20 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4914097A (fr) |
| AU (1) | AU468619B2 (fr) |
| DE (1) | DE2310674A1 (fr) |
| FR (1) | FR2177363A5 (fr) |
| GB (1) | GB1368046A (fr) |
| IT (1) | IT979879B (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1087004A (fr) * | 1976-08-11 | 1980-10-07 | Michael J. Hampshire | Generateur de son |
| JPS5814129U (ja) * | 1981-07-20 | 1983-01-28 | ティーディーケイ株式会社 | 物体検知装置 |
| JPS5890698A (ja) * | 1981-11-25 | 1983-05-30 | 松下電器産業株式会社 | 発音装置 |
| BE1026880B1 (nl) * | 2018-12-18 | 2020-07-22 | Sonitron Nv | Werkwijze voor het produceren van een piëzo-elektrische buzzer en een piëzo-elektrische buzzer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553479Y2 (fr) * | 1974-10-09 | 1980-01-28 |
-
1973
- 1973-02-23 AU AU52532/73A patent/AU468619B2/en not_active Expired
- 1973-02-27 GB GB969073A patent/GB1368046A/en not_active Expired
- 1973-03-03 DE DE19732310674 patent/DE2310674A1/de active Pending
- 1973-03-12 JP JP2808473A patent/JPS4914097A/ja active Pending
- 1973-03-16 IT IT4885373A patent/IT979879B/it active
- 1973-03-20 FR FR7309996A patent/FR2177363A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU5253273A (en) | 1974-08-29 |
| DE2310674A1 (de) | 1973-10-04 |
| GB1368046A (en) | 1974-09-25 |
| IT979879B (it) | 1974-09-30 |
| JPS4914097A (fr) | 1974-02-07 |
| AU468619B2 (en) | 1976-01-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |