FR2054574A1 - - Google Patents
Info
- Publication number
- FR2054574A1 FR2054574A1 FR7022060A FR7022060A FR2054574A1 FR 2054574 A1 FR2054574 A1 FR 2054574A1 FR 7022060 A FR7022060 A FR 7022060A FR 7022060 A FR7022060 A FR 7022060A FR 2054574 A1 FR2054574 A1 FR 2054574A1
- 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.)
- Granted
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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4688769 | 1969-06-16 | ||
| JP4688669 | 1969-06-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2054574A1 true FR2054574A1 (de) | 1971-04-23 |
| FR2054574B1 FR2054574B1 (de) | 1973-03-16 |
Family
ID=26387034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR707022060A Expired FR2054574B1 (de) | 1969-06-16 | 1970-06-16 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3718919A (de) |
| AT (1) | AT301398B (de) |
| DE (1) | DE2029752B2 (de) |
| ES (1) | ES378081A1 (de) |
| FR (1) | FR2054574B1 (de) |
| GB (1) | GB1254839A (de) |
| IL (1) | IL34107A (de) |
| NL (1) | NL150595B (de) |
| SE (1) | SE348576B (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2130445C3 (de) * | 1971-06-19 | 1981-06-04 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Schaltungsanordnung für zur Meldung und Signalisierung dienende Linienstromkreise |
| US4020415A (en) * | 1974-12-30 | 1977-04-26 | Unitec, Inc. | Combustion product indicator |
| CH586941A5 (de) * | 1975-07-25 | 1977-04-15 | Cerberus Ag | |
| USRE30117E (en) * | 1975-07-25 | 1979-10-16 | Cerberus Ag | Ionization-type fire or smoke sensing system |
| US4083037A (en) * | 1975-12-08 | 1978-04-04 | Patent Development & Management Company | Detection circuit |
-
1970
- 1970-03-17 US US00020353A patent/US3718919A/en not_active Expired - Lifetime
- 1970-03-18 IL IL34107A patent/IL34107A/xx unknown
- 1970-03-31 ES ES378081A patent/ES378081A1/es not_active Expired
- 1970-04-02 NL NL707004720A patent/NL150595B/xx unknown
- 1970-05-04 SE SE06098/70A patent/SE348576B/xx unknown
- 1970-06-09 GB GB27795/70A patent/GB1254839A/en not_active Expired
- 1970-06-15 AT AT537870A patent/AT301398B/de not_active IP Right Cessation
- 1970-06-16 DE DE19702029752 patent/DE2029752B2/de active Granted
- 1970-06-16 FR FR707022060A patent/FR2054574B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7004720A (de) | 1970-12-18 |
| IL34107A0 (en) | 1970-05-21 |
| DE2029752B2 (de) | 1971-12-02 |
| NL150595B (nl) | 1976-08-16 |
| GB1254839A (en) | 1971-11-24 |
| AT301398B (de) | 1972-09-11 |
| DE2029752A1 (de) | 1971-01-07 |
| US3718919A (en) | 1973-02-27 |
| FR2054574B1 (de) | 1973-03-16 |
| ES378081A1 (es) | 1972-12-01 |
| IL34107A (en) | 1972-09-28 |
| SE348576B (de) | 1972-09-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |