CA424630A - Systeme de signalisation telephonique - Google Patents
Systeme de signalisation telephoniqueInfo
- Publication number
- CA424630A CA424630A CA424630A CA424630DA CA424630A CA 424630 A CA424630 A CA 424630A CA 424630 A CA424630 A CA 424630A CA 424630D A CA424630D A CA 424630DA CA 424630 A CA424630 A CA 424630A
- Authority
- CA
- Canada
- Prior art keywords
- signalling system
- telephone signalling
- telephone
- signalling
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA424630T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA424630A true CA424630A (fr) | 1944-12-26 |
Family
ID=35535645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA424630A Expired CA424630A (fr) | Systeme de signalisation telephonique |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA424630A (fr) |
-
0
- CA CA424630A patent/CA424630A/fr not_active Expired
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