FR2168901A2 - - Google Patents
Info
- Publication number
- FR2168901A2 FR2168901A2 FR7202502A FR7202502A FR2168901A2 FR 2168901 A2 FR2168901 A2 FR 2168901A2 FR 7202502 A FR7202502 A FR 7202502A FR 7202502 A FR7202502 A FR 7202502A FR 2168901 A2 FR2168901 A2 FR 2168901A2
- 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.)
- Pending
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 |
|---|---|---|---|
| FR7202502A FR2168901A2 (member.php) | 1972-01-26 | 1972-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7202502A FR2168901A2 (member.php) | 1972-01-26 | 1972-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2168901A2 true FR2168901A2 (member.php) | 1973-09-07 |
Family
ID=9092447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7202502A Pending FR2168901A2 (member.php) | 1972-01-26 | 1972-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2168901A2 (member.php) |
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1972
- 1972-01-26 FR FR7202502A patent/FR2168901A2/fr active Pending