CA439778A - Automatic telephone system - Google Patents
Automatic telephone systemInfo
- Publication number
- CA439778A CA439778A CA439778DA CA439778A CA 439778 A CA439778 A CA 439778A CA 439778D A CA439778D A CA 439778DA CA 439778 A CA439778 A CA 439778A
- Authority
- CA
- Canada
- Prior art keywords
- telephone system
- automatic telephone
- automatic
- 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 |
---|---|---|---|
CA439778T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA439778A true CA439778A (en) | 1947-02-18 |
Family
ID=35555012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA439778D Expired CA439778A (en) | Automatic telephone system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA439778A (en) |
-
0
- CA CA439778D patent/CA439778A/en not_active Expired
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