CA918778A - Alarm circuit supervisory means - Google Patents

Alarm circuit supervisory means

Info

Publication number
CA918778A
CA918778A CA140619A CA140619A CA918778A CA 918778 A CA918778 A CA 918778A CA 140619 A CA140619 A CA 140619A CA 140619 A CA140619 A CA 140619A CA 918778 A CA918778 A CA 918778A
Authority
CA
Canada
Prior art keywords
alarm circuit
supervisory means
circuit supervisory
alarm
supervisory
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
CA140619A
Other versions
CA140619S (en
Inventor
B. Mcleod Robert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gulf and Western Systems Co
Original Assignee
Gulf and Western Systems Co
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
Priority claimed from CA088249A external-priority patent/CA918777A/en
Application filed by Gulf and Western Systems Co filed Critical Gulf and Western Systems Co
Priority to CA140619A priority Critical patent/CA918778A/en
Application granted granted Critical
Publication of CA918778A publication Critical patent/CA918778A/en
Expired legal-status Critical Current

Links

CA140619A 1969-11-17 1972-04-26 Alarm circuit supervisory means Expired CA918778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA140619A CA918778A (en) 1969-11-17 1972-04-26 Alarm circuit supervisory means

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US87710769A 1969-11-17 1969-11-17
CA088249A CA918777A (en) 1969-11-17 1970-07-15 Alarm circuit supervisory means
CA140619A CA918778A (en) 1969-11-17 1972-04-26 Alarm circuit supervisory means

Publications (1)

Publication Number Publication Date
CA918778A true CA918778A (en) 1973-01-09

Family

ID=25666489

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140619A Expired CA918778A (en) 1969-11-17 1972-04-26 Alarm circuit supervisory means

Country Status (1)

Country Link
CA (1) CA918778A (en)

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