NL229563A - - Google Patents
Info
- Publication number
- NL229563A NL229563A NL229563DA NL229563A NL 229563 A NL229563 A NL 229563A NL 229563D A NL229563D A NL 229563DA NL 229563 A NL229563 A NL 229563A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electronic Switches (AREA)
- Interface Circuits In Exchanges (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US672651A US2987579A (en) | 1957-07-18 | 1957-07-18 | Crosspoint switching network control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL229563A true NL229563A (US20030157025A1-20030821-C00031.png) |
Family
ID=24699444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL229563D NL229563A (US20030157025A1-20030821-C00031.png) | 1957-07-18 |
Country Status (7)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3177291A (en) * | 1961-01-24 | 1965-04-06 | Itt | Electronic switching telephone system |
| NL274811A (US20030157025A1-20030821-C00031.png) * | 1961-03-20 | |||
| BE640452A (US20030157025A1-20030821-C00031.png) * | 1962-11-28 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2294237A (en) * | 1940-06-05 | 1942-08-25 | Bell Telephone Labor Inc | Telephone circuit |
| US2600502A (en) * | 1948-04-24 | 1952-06-17 | Bell Telephone Labor Inc | Calling line and private branch exchange line identifier |
| BE557053A (US20030157025A1-20030821-C00031.png) * | 1950-09-26 | 1900-01-01 | ||
| US2590262A (en) * | 1950-11-09 | 1952-03-25 | Bell Telephone Labor Inc | Trunk frame designation transfer |
-
0
- NL NL229563D patent/NL229563A/xx unknown
- BE BE568947D patent/BE568947A/xx unknown
-
1957
- 1957-07-18 US US672651A patent/US2987579A/en not_active Expired - Lifetime
-
1958
- 1958-06-23 DE DEW23557A patent/DE1055057B/de active Pending
- 1958-06-28 FR FR1210003D patent/FR1210003A/fr not_active Expired
- 1958-07-17 CH CH358837D patent/CH358837A/de unknown
- 1958-07-18 GB GB23129/58A patent/GB899761A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1210003A (fr) | 1960-03-04 |
| GB899761A (en) | 1962-06-27 |
| CH358837A (de) | 1961-12-15 |
| US2987579A (en) | 1961-06-06 |
| BE568947A (US20030157025A1-20030821-C00031.png) | |
| DE1055057B (de) | 1959-04-16 |
