CA236647A - Systeme telephonique a relais - Google Patents
Systeme telephonique a relaisInfo
- Publication number
- CA236647A CA236647A CA236647A CA236647DA CA236647A CA 236647 A CA236647 A CA 236647A CA 236647 A CA236647 A CA 236647A CA 236647D A CA236647D A CA 236647DA CA 236647 A CA236647 A CA 236647A
- Authority
- CA
- Canada
- Prior art keywords
- telephone system
- relay telephone
- relay
- 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 |
---|---|---|---|
CA236647T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA236647A true CA236647A (fr) | 1923-12-25 |
Family
ID=35134021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA236647A Expired CA236647A (fr) | Systeme telephonique a relais |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA236647A (fr) |
-
0
- CA CA236647A patent/CA236647A/fr not_active Expired
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