BE485493A - - Google Patents
Info
- Publication number
- BE485493A BE485493A BE485493DA BE485493A BE 485493 A BE485493 A BE 485493A BE 485493D A BE485493D A BE 485493DA BE 485493 A BE485493 A BE 485493A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US782704A US2582959A (en) | 1947-10-29 | 1947-10-29 | Electron-tube controlled switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE485493A true BE485493A (US07534539-20090519-C00280.png) |
Family
ID=25126922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE485493D BE485493A (US07534539-20090519-C00280.png) | 1947-10-29 |
Country Status (6)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2674657A (en) * | 1949-04-04 | 1954-04-06 | Itt | Primary-secondary-spread crossbar telephone system |
| BE497529A (US07534539-20090519-C00280.png) * | 1949-08-12 | |||
| US2686837A (en) * | 1949-09-10 | 1954-08-17 | Bell Telephone Labor Inc | High-speed electronic switching system |
| BE498266A (US07534539-20090519-C00280.png) * | 1949-09-23 | |||
| BE498523A (US07534539-20090519-C00280.png) * | 1949-10-07 | |||
| US2668195A (en) * | 1949-12-29 | 1954-02-02 | Bell Telephone Labor Inc | Marking and switching system |
| GB722179A (US07534539-20090519-C00280.png) * | 1950-05-17 | |||
| US2672521A (en) * | 1950-10-17 | 1954-03-16 | Bell Telephone Labor Inc | Channel testing circuit |
| US2734946A (en) * | 1951-04-03 | 1956-02-14 | Mercer | |
| US2813929A (en) * | 1951-11-12 | 1957-11-19 | Nederlanden Staat | Automatic signalling system |
| BE515435A (US07534539-20090519-C00280.png) * | 1951-11-12 | |||
| BE516931A (US07534539-20090519-C00280.png) * | 1952-01-16 | |||
| NL89659C (US07534539-20090519-C00280.png) * | 1952-01-26 | |||
| US2960575A (en) * | 1952-04-10 | 1960-11-15 | Int Standard Electric Corp | Automatic telecommunication systems |
| BE519952A (US07534539-20090519-C00280.png) * | 1952-05-16 | |||
| GB784522A (en) * | 1954-10-19 | 1957-10-09 | Gen Electric Co Ltd | Improvements in and relating to automatic telephone systems |
| US2773128A (en) * | 1955-02-28 | 1956-12-04 | Itt | Crossbar-switch connector system |
| US3007008A (en) * | 1955-07-15 | 1961-10-31 | North Electric Co | Automatic telephone system |
| US2999131A (en) * | 1956-06-21 | 1961-09-05 | Ericsson Telefon Ab L M | Group selection stage for automatic telephone exchanges |
| FR81607E (US07534539-20090519-C00280.png) * | 1961-04-25 | 1964-01-17 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2291752A (en) * | 1941-02-05 | 1942-08-04 | Bell Telephone Labor Inc | Selecting system |
| NL68615C (US07534539-20090519-C00280.png) * | 1941-02-08 | 1900-01-01 | ||
| NL69254C (US07534539-20090519-C00280.png) * | 1941-02-08 | 1900-01-01 | ||
| US2291040A (en) * | 1941-02-08 | 1942-07-28 | Bell Telephone Labor Inc | Switching system |
| US2310452A (en) * | 1941-06-05 | 1943-02-09 | Bell Telephone Labor Inc | Switching system |
| BE475754A (US07534539-20090519-C00280.png) * | 1941-11-21 | |||
| NL72717C (US07534539-20090519-C00280.png) * | 1941-11-21 | |||
| US2326458A (en) * | 1942-02-17 | 1943-08-10 | Bell Telephone Labor Inc | Selection system |
| US2326478A (en) * | 1942-02-17 | 1943-08-10 | Bell Telephone Labor Inc | Selection system |
| US2317471A (en) * | 1942-02-17 | 1943-04-27 | Bell Telephone Labor Inc | Selection system |
| US2348626A (en) * | 1942-11-14 | 1944-05-09 | Bell Telephone Labor Inc | Channel selecting circuit |
| GB566445A (en) * | 1943-08-13 | 1944-12-29 | Siemens Brothers & Co Ltd | Improvements relating to searching arrangements in telephone systems |
| BE465609A (US07534539-20090519-C00280.png) * | 1944-02-11 |
-
0
- NL NL676716333A patent/NL143044B/xx unknown
- BE BE485493D patent/BE485493A/xx unknown
- FR FR973819D patent/FR973819A/fr not_active Expired
-
1947
- 1947-10-29 US US782704A patent/US2582959A/en not_active Expired - Lifetime
-
1948
- 1948-10-11 CH CH277495D patent/CH277495A/de unknown
- 1948-10-28 GB GB28011/48A patent/GB656693A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB656693A (en) | 1951-08-29 |
| NL143044B (nl) | |
| FR973819A (US07534539-20090519-C00280.png) | 1951-02-15 |
| CH277495A (de) | 1951-08-31 |
| US2582959A (en) | 1952-01-22 |
