FR2449282B1 - - Google Patents
Info
- Publication number
- FR2449282B1 FR2449282B1 FR8003147A FR8003147A FR2449282B1 FR 2449282 B1 FR2449282 B1 FR 2449282B1 FR 8003147 A FR8003147 A FR 8003147A FR 8003147 A FR8003147 A FR 8003147A FR 2449282 B1 FR2449282 B1 FR 2449282B1
- 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
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Fire-Detection Mechanisms (AREA)
- Electron Tubes For Measurement (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE193452A BE874157A (fr) | 1979-02-14 | 1979-02-14 | Detecteur ionique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2449282A1 FR2449282A1 (fr) | 1980-09-12 |
| FR2449282B1 true FR2449282B1 (US06373033-20020416-M00002.png) | 1985-01-11 |
Family
ID=3843185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8003147A Granted FR2449282A1 (fr) | 1979-02-14 | 1980-02-13 | Detecteur ionique |
Country Status (5)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60135757A (ja) * | 1983-12-23 | 1985-07-19 | Hochiki Corp | ガスセンサ |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7010165A (US06373033-20020416-M00002.png) * | 1969-07-22 | 1971-01-26 | ||
| FR2108895B1 (US06373033-20020416-M00002.png) * | 1970-10-16 | 1973-06-08 | Gamma Electronic | |
| CH554033A (de) * | 1973-04-03 | 1974-09-13 | Cerberus Ag | Iomisations-feuermelde-einrichtung. |
| FR2268263B1 (US06373033-20020416-M00002.png) * | 1974-04-18 | 1979-03-30 | Hochiki Co |
-
1979
- 1979-02-14 BE BE193452A patent/BE874157A/xx not_active IP Right Cessation
-
1980
- 1980-02-06 GB GB8003981A patent/GB2044987B/en not_active Expired
- 1980-02-12 NL NL8000858A patent/NL8000858A/nl not_active Application Discontinuation
- 1980-02-13 FR FR8003147A patent/FR2449282A1/fr active Granted
- 1980-02-14 ES ES488603A patent/ES488603A0/es active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2044987A (en) | 1980-10-22 |
| BE874157A (fr) | 1979-05-29 |
| GB2044987B (en) | 1983-05-11 |
| NL8000858A (nl) | 1980-08-18 |
| ES8100490A1 (es) | 1980-11-01 |
| FR2449282A1 (fr) | 1980-09-12 |
| ES488603A0 (es) | 1980-11-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |