FR2218601B3 - - Google Patents
Info
- Publication number
- FR2218601B3 FR2218601B3 FR7305888A FR7305888A FR2218601B3 FR 2218601 B3 FR2218601 B3 FR 2218601B3 FR 7305888 A FR7305888 A FR 7305888A FR 7305888 A FR7305888 A FR 7305888A FR 2218601 B3 FR2218601 B3 FR 2218601B3
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
- H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7305888A FR2218601B3 (de) | 1973-02-20 | 1973-02-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7305888A FR2218601B3 (de) | 1973-02-20 | 1973-02-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2218601A1 FR2218601A1 (de) | 1974-09-13 |
FR2218601B3 true FR2218601B3 (de) | 1976-02-20 |
Family
ID=9115089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7305888A Expired FR2218601B3 (de) | 1973-02-20 | 1973-02-20 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2218601B3 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290716A1 (fr) * | 1974-11-06 | 1976-06-04 | Halberthal Armand | Telegardiennage sans fausse alerte, a lever de doute et a contremesures, de tous genres de locaux surveilles a distance |
FR2491657A1 (fr) * | 1980-10-03 | 1982-04-09 | Mulot Maurice | Systeme de transmission d'informations et d'alarmes utilisant la parole synthetique |
US4492820A (en) * | 1980-10-24 | 1985-01-08 | Salt Lake Communications, Inc. | Telephone alarm system |
US4667065A (en) * | 1985-02-28 | 1987-05-19 | Bangerter Richard M | Apparatus and methods for electrical signal discrimination |
-
1973
- 1973-02-20 FR FR7305888A patent/FR2218601B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2218601A1 (de) | 1974-09-13 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |