BE732651A - - Google Patents
Info
- Publication number
- BE732651A BE732651A BE732651A BE732651A BE732651A BE 732651 A BE732651 A BE 732651A BE 732651 A BE732651 A BE 732651A BE 732651 A BE732651 A BE 732651A BE 732651 A BE732651 A BE 732651A
- Authority
- BE
- Belgium
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 (US20080138455A1-20080612-C00006.png) | 1969-04-04 | 1969-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE732651A true BE732651A (US20080138455A1-20080612-C00006.png) | 1969-10-16 |
Family
ID=12173907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE732651A BE732651A (US20080138455A1-20080612-C00006.png) | 1969-04-04 | 1969-05-07 |
Country Status (11)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3904979A1 (de) * | 1989-02-18 | 1990-08-23 | Beyersdorf Hartwig | Verfahren zum betrieb eines ionisationsrauchmelders und ionisationsrauchmelder |
| US5189399A (en) * | 1989-02-18 | 1993-02-23 | Hartwig Beyersdorf | Method of operating an ionization smoke alarm and ionization smoke alarm |
| CN111951514A (zh) * | 2020-08-03 | 2020-11-17 | 深圳职业技术学院 | 一种基于图像识别的烟雾检测装置 |
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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/xx unknown
- 1970-01-20 ES ES375686A patent/ES375686A1/es not_active Expired
- 1970-02-02 DE DE19702004584 patent/DE2004584B2/de not_active Withdrawn
- 1970-02-11 NL NL707001934A patent/NL144410B/xx 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/de not_active IP Right Cessation
- 1970-03-24 SE SE04027/70A patent/SE350634B/xx unknown
- 1970-04-02 CH CH489170A patent/CH498457A/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2004584A1 (de) | 1970-11-26 |
| IL33654A (en) | 1973-08-29 |
| NL7001934A (US20080138455A1-20080612-C00006.png) | 1970-10-06 |
| ES375686A1 (es) | 1972-05-16 |
| IL33654A0 (en) | 1970-03-22 |
| AT297544B (de) | 1972-03-27 |
| FR2042047A5 (US20080138455A1-20080612-C00006.png) | 1971-02-05 |
| SE350634B (US20080138455A1-20080612-C00006.png) | 1972-10-30 |
| NL144410B (nl) | 1974-12-16 |
| CH498457A (de) | 1970-10-31 |
| DE2004584B2 (de) | 1971-12-23 |
| GB1269911A (en) | 1972-04-06 |
| JPS5147039B1 (US20080138455A1-20080612-C00006.png) | 1976-12-13 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: NITTAN CY LTD Effective date: 19880531 |