GB1231197A - - Google Patents

Info

Publication number
GB1231197A
GB1231197A GB1231197DA GB1231197A GB 1231197 A GB1231197 A GB 1231197A GB 1231197D A GB1231197D A GB 1231197DA GB 1231197 A GB1231197 A GB 1231197A
Authority
GB
United Kingdom
Prior art keywords
lamps
diode
transistor
lamp
alarm
Prior art date
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
Application number
Other languages
English (en)
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 GB1231197A publication Critical patent/GB1231197A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB1231197D 1967-09-11 1967-09-11 Expired GB1231197A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4129867 1967-09-11

Publications (1)

Publication Number Publication Date
GB1231197A true GB1231197A (enrdf_load_stackoverflow) 1971-05-12

Family

ID=10419041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231197D Expired GB1231197A (enrdf_load_stackoverflow) 1967-09-11 1967-09-11

Country Status (2)

Country Link
FR (1) FR1599768A (enrdf_load_stackoverflow)
GB (1) GB1231197A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197740A (en) * 1986-11-21 1988-05-25 Tannoy Ltd Incident warning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197740A (en) * 1986-11-21 1988-05-25 Tannoy Ltd Incident warning system

Also Published As

Publication number Publication date
FR1599768A (enrdf_load_stackoverflow) 1970-07-20

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees