BE356266A - - Google Patents
Info
- Publication number
- BE356266A BE356266A BE356266DA BE356266A BE 356266 A BE356266 A BE 356266A BE 356266D A BE356266D A BE 356266DA BE 356266 A BE356266 A BE 356266A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US301495XA | 1927-12-02 | 1927-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE356266A true BE356266A (en:Method) |
Family
ID=21852776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE356266D BE356266A (en:Method) | 1927-12-02 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE356266A (en:Method) |
| GB (1) | GB301495A (en:Method) |
-
0
- BE BE356266D patent/BE356266A/xx unknown
-
1928
- 1928-11-12 GB GB33113/28A patent/GB301495A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB301495A (en) | 1930-02-12 |