NL7001934A - - Google Patents

Info

Publication number
NL7001934A
NL7001934A NL7001934A NL7001934A NL7001934A NL 7001934 A NL7001934 A NL 7001934A NL 7001934 A NL7001934 A NL 7001934A NL 7001934 A NL7001934 A NL 7001934A NL 7001934 A NL7001934 A NL 7001934A
Authority
NL
Netherlands
Application number
NL7001934A
Other versions
NL144410B (nl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of NL7001934A publication Critical patent/NL7001934A/xx
Publication of NL144410B publication Critical patent/NL144410B/xx

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)
NL707001934A 1969-04-04 1970-02-11 Rookdetectorketen. NL144410B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44025730A JPS5147039B1 (ja) 1969-04-04 1969-04-04

Publications (2)

Publication Number Publication Date
NL7001934A true NL7001934A (ja) 1970-10-06
NL144410B NL144410B (nl) 1974-12-16

Family

ID=12173907

Family Applications (1)

Application Number Title Priority Date Filing Date
NL707001934A NL144410B (nl) 1969-04-04 1970-02-11 Rookdetectorketen.

Country Status (11)

Country Link
JP (1) JPS5147039B1 (ja)
AT (1) AT297544B (ja)
BE (1) BE732651A (ja)
CH (1) CH498457A (ja)
DE (1) DE2004584B2 (ja)
ES (1) ES375686A1 (ja)
FR (1) FR2042047A5 (ja)
GB (1) GB1269911A (ja)
IL (1) IL33654A (ja)
NL (1) NL144410B (ja)
SE (1) SE350634B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE2004584A1 (de) 1970-11-26
IL33654A (en) 1973-08-29
ES375686A1 (es) 1972-05-16
IL33654A0 (en) 1970-03-22
AT297544B (de) 1972-03-27
FR2042047A5 (ja) 1971-02-05
SE350634B (ja) 1972-10-30
NL144410B (nl) 1974-12-16
CH498457A (de) 1970-10-31
BE732651A (ja) 1969-10-16
DE2004584B2 (de) 1971-12-23
GB1269911A (en) 1972-04-06
JPS5147039B1 (ja) 1976-12-13

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: NITTAN