BE719546A - - Google Patents
Info
- Publication number
- BE719546A BE719546A BE719546DA BE719546A BE 719546 A BE719546 A BE 719546A BE 719546D A BE719546D A BE 719546DA BE 719546 A BE719546 A BE 719546A
- Authority
- BE
- Belgium
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
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66132667A | 1967-08-17 | 1967-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE719546A true BE719546A (https=) | 1969-02-03 |
Family
ID=24653131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE719546D BE719546A (https=) | 1967-08-17 | 1968-08-16 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3530255A (https=) |
| JP (1) | JPS4520202B1 (https=) |
| BE (1) | BE719546A (https=) |
| FR (1) | FR1597443A (https=) |
| GB (1) | GB1238031A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3778555A (en) * | 1971-07-19 | 1973-12-11 | Digital Telephone Systems Inc | Telephone subscriber line system intra call apparatus and method |
| JPS5110704A (ja) * | 1974-07-15 | 1976-01-28 | Nippon Telegraph & Telephone | Denwakokanhoshiki |
-
1967
- 1967-08-17 US US661326A patent/US3530255A/en not_active Expired - Lifetime
-
1968
- 1968-08-06 GB GB1238031D patent/GB1238031A/en not_active Expired
- 1968-08-16 BE BE719546D patent/BE719546A/xx not_active IP Right Cessation
- 1968-08-16 JP JP5806068A patent/JPS4520202B1/ja active Pending
- 1968-08-16 FR FR1597443D patent/FR1597443A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1762747B1 (de) | 1970-10-22 |
| JPS4520202B1 (https=) | 1970-07-09 |
| GB1238031A (https=) | 1971-07-07 |
| US3530255A (en) | 1970-09-22 |
| FR1597443A (https=) | 1970-06-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: WESTERN ELECTRIC CY INC. Effective date: 19880816 |