GB615503A - Improvements in or relating to telephone systems - Google Patents
Improvements in or relating to telephone systemsInfo
- Publication number
- GB615503A GB615503A GB45048A GB45048A GB615503A GB 615503 A GB615503 A GB 615503A GB 45048 A GB45048 A GB 45048A GB 45048 A GB45048 A GB 45048A GB 615503 A GB615503 A GB 615503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- call
- incoming
- subscriber
- brings
- 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
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/006—Call diverting means
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephonic Communication Services (AREA)
- Exchange Systems With Centralized Control (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB615448D GB615448A (enrdf_load_stackoverflow) | 1945-12-15 | ||
GB45048A GB615503A (en) | 1945-12-15 | 1945-12-15 | Improvements in or relating to telephone systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB45048A GB615503A (en) | 1945-12-15 | 1945-12-15 | Improvements in or relating to telephone systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB615503A true GB615503A (en) | 1949-01-06 |
Family
ID=9704558
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB615448D Active GB615448A (enrdf_load_stackoverflow) | 1945-12-15 | ||
GB45048A Expired GB615503A (en) | 1945-12-15 | 1945-12-15 | Improvements in or relating to telephone systems |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB615448D Active GB615448A (enrdf_load_stackoverflow) | 1945-12-15 |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB615503A (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3965306A (en) * | 1974-11-11 | 1976-06-22 | San/Bar Corporation | Telephone line transfer circuit |
-
0
- GB GB615448D patent/GB615448A/en active Active
-
1945
- 1945-12-15 GB GB45048A patent/GB615503A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3965306A (en) * | 1974-11-11 | 1976-06-22 | San/Bar Corporation | Telephone line transfer circuit |
Also Published As
Publication number | Publication date |
---|---|
GB615448A (enrdf_load_stackoverflow) |
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