CA803621A - Telephone plant - Google Patents
Telephone plantInfo
- Publication number
- CA803621A CA803621A CA803621A CA803621DA CA803621A CA 803621 A CA803621 A CA 803621A CA 803621 A CA803621 A CA 803621A CA 803621D A CA803621D A CA 803621DA CA 803621 A CA803621 A CA 803621A
- Authority
- CA
- Canada
- Prior art keywords
- telephone plant
- telephone
- plant
- 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 |
---|---|---|---|
CA803621T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA803621A true CA803621A (en) | 1969-01-07 |
Family
ID=36271672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA803621A Expired CA803621A (en) | Telephone plant |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA803621A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578917A (en) * | 1968-06-18 | 1971-05-18 | Int Standard Electric Corp | Security circuit for multi-exchange telecommunication network |
-
0
- CA CA803621A patent/CA803621A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578917A (en) * | 1968-06-18 | 1971-05-18 | Int Standard Electric Corp | Security circuit for multi-exchange telecommunication network |
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