BE711894A - - Google Patents

Info

Publication number
BE711894A
BE711894A BE711894DA BE711894A BE 711894 A BE711894 A BE 711894A BE 711894D A BE711894D A BE 711894DA BE 711894 A BE711894 A BE 711894A
Authority
BE
Belgium
Application number
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 BE711894A publication Critical patent/BE711894A/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)
BE711894D 1967-03-10 1968-03-08 BE711894A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62211867A 1967-03-10 1967-03-10

Publications (1)

Publication Number Publication Date
BE711894A true BE711894A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-07-15

Family

ID=24493011

Family Applications (1)

Application Number Title Priority Date Filing Date
BE711894D BE711894A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-03-10 1968-03-08

Country Status (2)

Country Link
US (1) US3478352A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE711894A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550120A (en) * 1968-12-09 1970-12-22 Honeywell Inc Control apparatus
US3641570A (en) * 1969-04-02 1972-02-08 Francis T Thompson Alarm system
US3699569A (en) * 1972-01-28 1972-10-17 Minnesota Mining & Mfg Security system for indicating fire, intrusion or the like
US4716401A (en) * 1985-09-19 1987-12-29 Deere & Company Tamper-resistant supervisory system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021514A (en) * 1958-03-27 1962-02-13 Itt Voltage comparator
US3423748A (en) * 1965-10-20 1969-01-21 Mosler Research Products Inc Line supervisory circuit

Also Published As

Publication number Publication date
US3478352A (en) 1969-11-11

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