BE374665A - - Google Patents
Info
- Publication number
- BE374665A BE374665A BE374665DA BE374665A BE 374665 A BE374665 A BE 374665A BE 374665D A BE374665D A BE 374665DA BE 374665 A BE374665 A BE 374665A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3367429A GB342726A (en) | 1929-11-05 | 1929-11-05 | Improvements in or relating to telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE374665A true BE374665A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=10355960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE374665D BE374665A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1929-11-05 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE374665A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| GB (1) | GB342726A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2541336A (en) * | 1948-08-23 | 1951-02-13 | Automatic Elect Lab | Secretary's answering key cabinet |
-
0
- BE BE374665D patent/BE374665A/xx unknown
-
1929
- 1929-11-05 GB GB3367429A patent/GB342726A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB342726A (en) | 1931-02-05 |