BE539558A - - Google Patents
Info
- Publication number
- BE539558A BE539558A BE539558DA BE539558A BE 539558 A BE539558 A BE 539558A BE 539558D A BE539558D A BE 539558DA BE 539558 A BE539558 A BE 539558A
- 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
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US442784A US2804503A (en) | 1954-07-12 | 1954-07-12 | Switching selector repeater systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE539558A true BE539558A (cs) |
Family
ID=23758126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE539558D BE539558A (cs) | 1954-07-12 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2804503A (cs) |
| BE (1) | BE539558A (cs) |
| DE (1) | DE1002407B (cs) |
| FR (1) | FR1133569A (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2911480A (en) * | 1957-12-31 | 1959-11-03 | Gen Telephone Lab Inc | Small suboffice telephone system |
| US3019299A (en) * | 1959-08-26 | 1962-01-30 | Automatic Elect Lab | Switching selector repeater |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1537306A (en) * | 1920-04-26 | 1925-05-12 | Automatic Electric Co | Automatic telephone system |
| DE408765C (de) * | 1920-10-17 | 1925-01-29 | Siemens & Halske Akt Ges | Schaltungsanordnung fuer selbsttaetige Fernsprechanlagen mit Haupt- und mehreren Untervermittlungsstellen, sowie mit einheitlich in der Haupt-vermittlungsstelle angeordneten ersten Nummernstromstossempfaengern |
| DE451183C (de) * | 1922-04-17 | 1927-10-22 | Automatic Electric Comp | Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbeitrieb |
| US1645549A (en) * | 1922-05-08 | 1927-10-18 | Automatic Electric Inc | Multioffice automatic telephone system |
| US1675310A (en) * | 1925-08-31 | 1928-06-26 | Automatic Electric Inc | Telephone system |
-
0
- BE BE539558D patent/BE539558A/xx unknown
-
1954
- 1954-07-12 US US442784A patent/US2804503A/en not_active Expired - Lifetime
-
1955
- 1955-06-30 DE DEA22977A patent/DE1002407B/de active Pending
- 1955-07-04 FR FR1133569D patent/FR1133569A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2804503A (en) | 1957-08-27 |
| FR1133569A (fr) | 1957-03-28 |
| DE1002407B (de) | 1957-02-14 |