CA1177980A - Carte de circuits de ligne pour systeme telephonique a clavier electronique - Google Patents
Carte de circuits de ligne pour systeme telephonique a clavier electroniqueInfo
- 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
Links
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
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) |
-
1983
- 1983-09-01 CA CA000435924A patent/CA1177980A/fr not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |