BE498615A - - Google Patents
Info
- Publication number
- BE498615A BE498615A BE498615DA BE498615A BE 498615 A BE498615 A BE 498615A BE 498615D A BE498615D A BE 498615DA BE 498615 A BE498615 A BE 498615A
- Authority
- BE
- Belgium
- Prior art keywords
- switch
- paragraph
- capacity
- switching
- signal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to two or more of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to two or more of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems, e.g. audible personal calling systems
- G08B3/10—Audible signalling systems, e.g. audible personal calling systems using electric transmission; using electromagnetic transmission
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Emergency Alarm Devices (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE498615A true BE498615A (https=) |
Family
ID=141237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE498615D BE498615A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE498615A (https=) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2980888A (en) * | 1958-10-08 | 1961-04-18 | Ford Motor Co | Vehicle warning system |
| FR2397200A2 (fr) * | 1977-07-12 | 1979-02-09 | Bae Protection | Installation d'alarme et de reperage d'un homme blesse ou malade isole dans un local |
-
0
- BE BE498615D patent/BE498615A/fr unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2980888A (en) * | 1958-10-08 | 1961-04-18 | Ford Motor Co | Vehicle warning system |
| FR2397200A2 (fr) * | 1977-07-12 | 1979-02-09 | Bae Protection | Installation d'alarme et de reperage d'un homme blesse ou malade isole dans un local |
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