NL7205325A - - Google Patents
Info
- Publication number
- NL7205325A NL7205325A NL7205325A NL7205325A NL7205325A NL 7205325 A NL7205325 A NL 7205325A NL 7205325 A NL7205325 A NL 7205325A NL 7205325 A NL7205325 A NL 7205325A NL 7205325 A NL7205325 A NL 7205325A
- Authority
- NL
- Netherlands
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7205325A NL7205325A (fr) | 1972-04-20 | 1972-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7205325A NL7205325A (fr) | 1972-04-20 | 1972-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7205325A true NL7205325A (fr) | 1973-10-23 |
Family
ID=19815887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7205325A NL7205325A (fr) | 1972-04-20 | 1972-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL7205325A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2413730A1 (fr) * | 1977-12-28 | 1979-07-27 | Accumulateurs Fixes | Dispositif de commande d'un avertisseur electronique |
-
1972
- 1972-04-20 NL NL7205325A patent/NL7205325A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2413730A1 (fr) * | 1977-12-28 | 1979-07-27 | Accumulateurs Fixes | Dispositif de commande d'un avertisseur electronique |