CA446971A - Systeme de telephonie - Google Patents
Systeme de telephonieInfo
- Publication number
- CA446971A CA446971A CA446971A CA446971DA CA446971A CA 446971 A CA446971 A CA 446971A CA 446971 A CA446971 A CA 446971A CA 446971D A CA446971D A CA 446971DA CA 446971 A CA446971 A CA 446971A
- Authority
- CA
- Canada
- Prior art keywords
- telephone system
- telephone
- 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 |
|---|---|---|---|
| CA446971T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA446971A true CA446971A (fr) | 1948-03-02 |
Family
ID=35564650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA446971A Expired CA446971A (fr) | Systeme de telephonie |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA446971A (fr) |
-
0
- CA CA446971A patent/CA446971A/fr not_active Expired
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