CA160852A - Telephone signalling system - Google Patents
Telephone signalling systemInfo
- 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 (en) | 1915-02-23 |
Family
ID=45280547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000160852A Expired CA160852A (en) | 1911-06-17 | 1911-06-17 | Telephone signalling system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA160852A (en) |
-
1911
- 1911-06-17 CA CA000160852A patent/CA160852A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA130016A (en) | Telephone system | |
CA160852A (en) | Telephone signalling system | |
CA134391A (en) | Telephone system | |
CA148625A (en) | Telephone system | |
CA139254A (en) | Signalling system | |
CA161419A (en) | Signalling system for party lines | |
CA126590A (en) | Telephone system | |
CA126710A (en) | Telephone system | |
CA127001A (en) | Telephone system | |
CA128233A (en) | Telephone system | |
CA139487A (en) | Telephone system | |
CA151918A (en) | Telephone signalling system | |
AU1956010A (en) | Telephone system | |
CA167037A (en) | Selective signalling system | |
CA166250A (en) | Telephone system | |
CA173673A (en) | Telephone system | |
CA159346A (en) | Telephone system | |
CA159518A (en) | Telephone system | |
CA159645A (en) | Telephone system | |
CA159741A (en) | Telephone system | |
CA159748A (en) | Telephone system | |
CA164217A (en) | Telephone system | |
CA165670A (en) | Telephone system | |
CA166115A (en) | Telephone system | |
CA166116A (en) | Telephone system |