BE481686A - - Google Patents
Info
- Publication number
- BE481686A BE481686A BE481686DA BE481686A BE 481686 A BE481686 A BE 481686A BE 481686D A BE481686D A BE 481686DA BE 481686 A BE481686 A BE 481686A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1005555T | 1947-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE481686A true BE481686A (nl) |
Family
ID=9564894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE481686D BE481686A (nl) | 1947-08-07 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2783306A (nl) |
| BE (1) | BE481686A (nl) |
| CH (1) | CH279482A (nl) |
| FR (1) | FR1005555A (nl) |
| GB (1) | GB678503A (nl) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE554165A (nl) * | 1956-02-29 | |||
| US2908765A (en) * | 1958-04-10 | 1959-10-13 | Gen Dynamics Corp | Concentrator for telephone answering service |
| GB863627A (en) * | 1958-06-06 | 1961-03-22 | Gen Electric Co Ltd | Improvements in or relating to automatic telephone systems |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2057868A (en) * | 1936-10-20 | Telephone system | ||
| US1899014A (en) * | 1929-07-01 | 1933-02-28 | Siemens Brothers & Co Ltd | Telephone system |
| DE856624C (de) * | 1945-12-14 | 1952-11-24 | Erik Gunnar Valfrid Erlandsson | Schaltungsanordnung fuer Fernmeldeanlagen mit Waehlerbetrieb, insbesondere fuer Fernsprechanlagen |
| US2532097A (en) * | 1946-12-31 | 1950-11-28 | Bell Telephone Labor Inc | Decentralized line switch arrangement |
-
0
- BE BE481686D patent/BE481686A/xx unknown
-
1947
- 1947-08-07 FR FR1005555D patent/FR1005555A/fr not_active Expired
-
1948
- 1948-04-03 CH CH279482D patent/CH279482A/fr unknown
- 1948-04-30 GB GB11844/48A patent/GB678503A/en not_active Expired
-
1952
- 1952-09-08 US US308371A patent/US2783306A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2783306A (en) | 1957-02-26 |
| GB678503A (en) | 1952-09-03 |
| FR1005555A (fr) | 1952-04-11 |
| CH279482A (fr) | 1951-11-30 |