BE529412A - - Google Patents
Info
- Publication number
- BE529412A BE529412A BE529412DA BE529412A BE 529412 A BE529412 A BE 529412A BE 529412D A BE529412D A BE 529412DA BE 529412 A BE529412 A BE 529412A
- 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
- H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH314506T | 1953-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE529412A true BE529412A (en:Method) |
Family
ID=4495626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE529412D BE529412A (en:Method) | 1953-06-09 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE529412A (en:Method) |
| CH (1) | CH314506A (en:Method) |
-
0
- BE BE529412D patent/BE529412A/xx unknown
-
1953
- 1953-06-09 CH CH314506D patent/CH314506A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH314506A (de) | 1956-06-15 |