FR761452A - Avertisseur radio-électrique - Google Patents
Avertisseur radio-électriqueInfo
- Publication number
- FR761452A FR761452A FR761452DA FR761452A FR 761452 A FR761452 A FR 761452A FR 761452D A FR761452D A FR 761452DA FR 761452 A FR761452 A FR 761452A
- Authority
- FR
- France
- Prior art keywords
- radio
- electric horn
- horn
- electric
- Prior art date
- 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
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR761452T | 1932-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR761452A true FR761452A (fr) | 1934-03-20 |
Family
ID=9173118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR761452D Expired FR761452A (fr) | 1932-12-19 | 1932-12-19 | Avertisseur radio-électrique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR761452A (fr) |
-
1932
- 1932-12-19 FR FR761452D patent/FR761452A/fr not_active Expired
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