CA297841A - Systeme de central telephonique - Google Patents
Systeme de central telephoniqueInfo
- Publication number
- CA297841A CA297841A CA297841A CA297841DA CA297841A CA 297841 A CA297841 A CA 297841A CA 297841 A CA297841 A CA 297841A CA 297841D A CA297841D A CA 297841DA CA 297841 A CA297841 A CA 297841A
- Authority
- CA
- Canada
- Prior art keywords
- exchange system
- telephone exchange
- telephone
- exchange
- 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 |
|---|---|---|---|
| CA297841T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA297841A true CA297841A (fr) | 1930-02-25 |
Family
ID=35235161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA297841A Expired CA297841A (fr) | Systeme de central telephonique |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA297841A (fr) |
-
0
- CA CA297841A patent/CA297841A/fr not_active Expired
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