BE420370A - - Google Patents
Info
- Publication number
- BE420370A BE420370A BE420370DA BE420370A BE 420370 A BE420370 A BE 420370A BE 420370D A BE420370D A BE 420370DA BE 420370 A BE420370 A BE 420370A
- Authority
- BE
- Belgium
- Prior art keywords
- relay
- microphone
- indicator
- vehicle
- receivers
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
- G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE420370A true BE420370A (https=) |
Family
ID=82453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE420370D BE420370A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE420370A (https=) |
-
0
- BE BE420370D patent/BE420370A/fr unknown
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