FR2524743B1 - - Google Patents
Info
- Publication number
- FR2524743B1 FR2524743B1 FR8205668A FR8205668A FR2524743B1 FR 2524743 B1 FR2524743 B1 FR 2524743B1 FR 8205668 A FR8205668 A FR 8205668A FR 8205668 A FR8205668 A FR 8205668A FR 2524743 B1 FR2524743 B1 FR 2524743B1
- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
- G08B27/001—Signalling to an emergency team, e.g. firemen
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
- G08B27/006—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations with transmission via telephone network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8205668A FR2524743A1 (fr) | 1982-04-01 | 1982-04-01 | Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8205668A FR2524743A1 (fr) | 1982-04-01 | 1982-04-01 | Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2524743A1 FR2524743A1 (fr) | 1983-10-07 |
| FR2524743B1 true FR2524743B1 (OSRAM) | 1984-05-04 |
Family
ID=9272658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8205668A Granted FR2524743A1 (fr) | 1982-04-01 | 1982-04-01 | Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2524743A1 (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128600A (ja) * | 1983-12-16 | 1985-07-09 | 永井電気通信機株式会社 | 非常警報装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH188244A (de) * | 1936-04-24 | 1936-12-15 | Siemens Ag | Fernsprechanlage mit Gruppenalarmeinrichtung. |
| US3643029A (en) * | 1970-02-10 | 1972-02-15 | Paul H Breazeale | Community warning system using telephone lines |
| CA998484A (en) * | 1973-06-26 | 1976-10-12 | Michael C.J. Cowpland | Audio frequency signalling systems for telephone systems |
-
1982
- 1982-04-01 FR FR8205668A patent/FR2524743A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2524743A1 (fr) | 1983-10-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |