CA169171A - Telephone switching system - Google Patents
Telephone switching systemInfo
- Publication number
- CA169171A CA169171A CA000169171A CA169171DA CA169171A CA 169171 A CA169171 A CA 169171A CA 000169171 A CA000169171 A CA 000169171A CA 169171D A CA169171D A CA 169171DA CA 169171 A CA169171 A CA 169171A
- Authority
- CA
- Canada
- Prior art keywords
- switching system
- telephone switching
- telephone
- switching
- 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 |
---|---|---|---|
CA169171T | 1915-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA169171A true CA169171A (en) | 1916-05-02 |
Family
ID=45288835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000169171A Expired CA169171A (en) | 1915-04-03 | 1915-04-03 | Telephone switching system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA169171A (en) |
-
1915
- 1915-04-03 CA CA000169171A patent/CA169171A/en not_active Expired
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