CA494857A - Electronic telephone exchange - Google Patents
Electronic telephone exchangeInfo
- Publication number
- CA494857A CA494857A CA494857A CA494857DA CA494857A CA 494857 A CA494857 A CA 494857A CA 494857 A CA494857 A CA 494857A CA 494857D A CA494857D A CA 494857DA CA 494857 A CA494857 A CA 494857A
- Authority
- CA
- Canada
- Prior art keywords
- telephone exchange
- electronic telephone
- electronic
- exchange
- 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 |
---|---|---|---|
CA494857T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA494857A true CA494857A (en) | 1953-07-28 |
Family
ID=35640260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA494857A Expired CA494857A (en) | Electronic telephone exchange |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA494857A (en) |
-
0
- CA CA494857A patent/CA494857A/en not_active Expired
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