CA189590A - Telephone transmission system - Google Patents
Telephone transmission systemInfo
- Publication number
- CA189590A CA189590A CA000189590A CA189590DA CA189590A CA 189590 A CA189590 A CA 189590A CA 000189590 A CA000189590 A CA 000189590A CA 189590D A CA189590D A CA 189590DA CA 189590 A CA189590 A CA 189590A
- Authority
- CA
- Canada
- Prior art keywords
- transmission system
- telephone transmission
- telephone
- transmission
- 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 |
---|---|---|---|
CA189590T | 1918-02-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA189590A true CA189590A (en) | 1919-04-08 |
Family
ID=45309241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000189590A Expired CA189590A (en) | 1918-02-15 | 1918-02-15 | Telephone transmission system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA189590A (en) |
-
1918
- 1918-02-15 CA CA000189590A patent/CA189590A/en not_active Expired
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