FR2191179B3 - - Google Patents
Info
- Publication number
- FR2191179B3 FR2191179B3 FR7241509A FR7241509A FR2191179B3 FR 2191179 B3 FR2191179 B3 FR 2191179B3 FR 7241509 A FR7241509 A FR 7241509A FR 7241509 A FR7241509 A FR 7241509A FR 2191179 B3 FR2191179 B3 FR 2191179B3
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7241509A FR2191179B3 (da) | 1972-11-22 | 1972-11-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7241509A FR2191179B3 (da) | 1972-11-22 | 1972-11-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2191179A1 FR2191179A1 (da) | 1974-02-01 |
FR2191179B3 true FR2191179B3 (da) | 1976-01-09 |
Family
ID=9107533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7241509A Expired FR2191179B3 (da) | 1972-11-22 | 1972-11-22 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2191179B3 (da) |
-
1972
- 1972-11-22 FR FR7241509A patent/FR2191179B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2191179A1 (da) | 1974-02-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licenses |