CA420146A - Appareil de signaux de telephone - Google Patents
Appareil de signaux de telephoneInfo
- Publication number
- CA420146A CA420146A CA420146A CA420146DA CA420146A CA 420146 A CA420146 A CA 420146A CA 420146 A CA420146 A CA 420146A CA 420146D A CA420146D A CA 420146DA CA 420146 A CA420146 A CA 420146A
- Authority
- CA
- Canada
- Prior art keywords
- telephone signal
- signal appliance
- appliance
- telephone
- signal
- 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 |
|---|---|---|---|
| CA420146T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA420146A true CA420146A (fr) | 1944-05-09 |
Family
ID=35531068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA420146A Expired CA420146A (fr) | Appareil de signaux de telephone |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA420146A (fr) |
-
0
- CA CA420146A patent/CA420146A/fr not_active Expired
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