CA1177980A - Carte de circuits de ligne pour systeme telephonique a clavier electronique - Google Patents

Carte de circuits de ligne pour systeme telephonique a clavier electronique

Info

Publication number
CA1177980A
CA1177980A CA000435924A CA435924A CA1177980A CA 1177980 A CA1177980 A CA 1177980A CA 000435924 A CA000435924 A CA 000435924A CA 435924 A CA435924 A CA 435924A CA 1177980 A CA1177980 A CA 1177980A
Authority
CA
Canada
Prior art keywords
signal
circuit
station
response
seize
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
CA000435924A
Other languages
English (en)
Inventor
Ira Guzik
Alan Bloch
Frank A. Coviello
Candido Puebla
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.)
Tie Communications Inc
Original Assignee
Tie Communications Inc
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 US06/018,191 external-priority patent/US4338495A/en
Application filed by Tie Communications Inc filed Critical Tie Communications Inc
Priority to CA000435924A priority Critical patent/CA1177980A/fr
Application granted granted Critical
Publication of CA1177980A publication Critical patent/CA1177980A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
CA000435924A 1979-03-06 1983-09-01 Carte de circuits de ligne pour systeme telephonique a clavier electronique Expired CA1177980A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000435924A CA1177980A (fr) 1979-03-06 1983-09-01 Carte de circuits de ligne pour systeme telephonique a clavier electronique

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US018,191 1979-03-06
US06/018,191 US4338495A (en) 1979-03-06 1979-03-06 Electronic key telephone systems
CA000335220A CA1174773A (fr) 1979-03-06 1979-09-06 Systeme telephonique a clavier electronique
CA000435924A CA1177980A (fr) 1979-03-06 1983-09-01 Carte de circuits de ligne pour systeme telephonique a clavier electronique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA000335220A Division CA1174773A (fr) 1979-03-06 1979-09-06 Systeme telephonique a clavier electronique

Publications (1)

Publication Number Publication Date
CA1177980A true CA1177980A (fr) 1984-11-13

Family

ID=27166393

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000435924A Expired CA1177980A (fr) 1979-03-06 1983-09-01 Carte de circuits de ligne pour systeme telephonique a clavier electronique

Country Status (1)

Country Link
CA (1) CA1177980A (fr)

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Legal Events

Date Code Title Description
MKEX Expiry