FR2042047A5 - - Google Patents
Info
- Publication number
- FR2042047A5 FR2042047A5 FR7004935A FR7004935A FR2042047A5 FR 2042047 A5 FR2042047 A5 FR 2042047A5 FR 7004935 A FR7004935 A FR 7004935A FR 7004935 A FR7004935 A FR 7004935A FR 2042047 A5 FR2042047 A5 FR 2042047A5
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Emergency Alarm Devices (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44025730A JPS5147039B1 (en) | 1969-04-04 | 1969-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2042047A5 true FR2042047A5 (en) | 1971-02-05 |
Family
ID=12173907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7004935A Expired FR2042047A5 (en) | 1969-04-04 | 1970-02-12 |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5147039B1 (en) |
| AT (1) | AT297544B (en) |
| BE (1) | BE732651A (en) |
| CH (1) | CH498457A (en) |
| DE (1) | DE2004584B2 (en) |
| ES (1) | ES375686A1 (en) |
| FR (1) | FR2042047A5 (en) |
| GB (1) | GB1269911A (en) |
| IL (1) | IL33654A (en) |
| NL (1) | NL144410B (en) |
| SE (1) | SE350634B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3904979A1 (en) * | 1989-02-18 | 1990-08-23 | Beyersdorf Hartwig | METHOD FOR OPERATING AN IONIZATION SMOKE DETECTOR AND IONIZATION SMOKE DETECTOR |
| US5189399A (en) * | 1989-02-18 | 1993-02-23 | Hartwig Beyersdorf | Method of operating an ionization smoke alarm and ionization smoke alarm |
| CN111951514A (en) * | 2020-08-03 | 2020-11-17 | 深圳职业技术学院 | Smog detection device based on image recognition |
-
1969
- 1969-04-04 JP JP44025730A patent/JPS5147039B1/ja active Pending
- 1969-05-07 BE BE732651A patent/BE732651A/xx not_active IP Right Cessation
-
1970
- 1970-01-02 IL IL33654A patent/IL33654A/en unknown
- 1970-01-20 ES ES375686A patent/ES375686A1/en not_active Expired
- 1970-02-02 DE DE19702004584 patent/DE2004584B2/en not_active Withdrawn
- 1970-02-11 NL NL707001934A patent/NL144410B/en not_active IP Right Cessation
- 1970-02-12 FR FR7004935A patent/FR2042047A5/fr not_active Expired
- 1970-02-23 GB GB8573/70A patent/GB1269911A/en not_active Expired
- 1970-02-27 AT AT183670A patent/AT297544B/en not_active IP Right Cessation
- 1970-03-24 SE SE04027/70A patent/SE350634B/xx unknown
- 1970-04-02 CH CH489170A patent/CH498457A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2004584A1 (en) | 1970-11-26 |
| IL33654A (en) | 1973-08-29 |
| NL7001934A (en) | 1970-10-06 |
| ES375686A1 (en) | 1972-05-16 |
| IL33654A0 (en) | 1970-03-22 |
| AT297544B (en) | 1972-03-27 |
| SE350634B (en) | 1972-10-30 |
| NL144410B (en) | 1974-12-16 |
| CH498457A (en) | 1970-10-31 |
| BE732651A (en) | 1969-10-16 |
| DE2004584B2 (en) | 1971-12-23 |
| GB1269911A (en) | 1972-04-06 |
| JPS5147039B1 (en) | 1976-12-13 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |