CA160852A - Systeme de signaux telephoniques - Google Patents
Systeme de signaux telephoniquesInfo
- Publication number
- CA160852A CA160852A CA000160852A CA160852DA CA160852A CA 160852 A CA160852 A CA 160852A CA 000160852 A CA000160852 A CA 000160852A CA 160852D A CA160852D A CA 160852DA CA 160852 A CA160852 A CA 160852A
- Authority
- CA
- Canada
- Prior art keywords
- signalling system
- telephone signalling
- telephone
- signalling
- 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 |
---|---|---|---|
CA160852T | 1911-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA160852A true CA160852A (fr) | 1915-02-23 |
Family
ID=45280547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000160852A Expired CA160852A (fr) | 1911-06-17 | 1911-06-17 | Systeme de signaux telephoniques |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA160852A (fr) |
-
1911
- 1911-06-17 CA CA000160852A patent/CA160852A/fr not_active Expired
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