BE517178A - - Google Patents
Info
- Publication number
- BE517178A BE517178A BE517178DA BE517178A BE 517178 A BE517178 A BE 517178A BE 517178D A BE517178D A BE 517178DA BE 517178 A BE517178 A BE 517178A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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)
- Interface Circuits In Exchanges (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2191/52A GB741545A (en) | 1952-01-26 | 1952-01-26 | Improvements in or relating to automatic telephone exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE517178A true BE517178A (pt) |
Family
ID=9735183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE517178D BE517178A (pt) | 1952-01-26 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2761012A (pt) |
| BE (1) | BE517178A (pt) |
| DE (1) | DE964685C (pt) |
| FR (1) | FR1074036A (pt) |
| GB (2) | GB741545A (pt) |
| NL (2) | NL175544B (pt) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2960575A (en) * | 1952-04-10 | 1960-11-15 | Int Standard Electric Corp | Automatic telecommunication systems |
| FR1058491A (fr) * | 1952-06-18 | 1954-03-16 | Constr Telephoniques | Perfectionnements aux systèmes téléphoniques automatiques |
| US3007008A (en) * | 1955-07-15 | 1961-10-31 | North Electric Co | Automatic telephone system |
| GB822409A (en) * | 1956-06-14 | 1959-10-28 | Siemens Edison Swan Ltd | Improvements relating to automatic switching systems |
| NL220430A (pt) * | 1956-12-07 | |||
| NL126947C (pt) * | 1958-01-15 | |||
| GB890235A (pt) * | 1959-05-09 | 1900-01-01 | ||
| GB983507A (en) * | 1961-09-20 | 1965-02-17 | Automatic Telephone & Elect | Improvements in or relating to crossbar switches for use in automatic telephone systems |
| DE1266261B (de) * | 1965-05-20 | 1968-04-18 | Paurat F | Stempel aus Holz fuer den Ausbau von Untertage-Raeumen, insbesondere fuer den Streckenausbau |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2326458A (en) * | 1942-02-17 | 1943-08-10 | Bell Telephone Labor Inc | Selection system |
| BE485493A (pt) * | 1947-10-29 | |||
| US2609454A (en) * | 1948-06-29 | 1952-09-02 | Bell Telephone Labor Inc | Selecting and lockout circuit |
| US2681386A (en) * | 1948-07-13 | 1954-06-15 | Automatic Telephone & Elect | Electrical signaling system using nonlinear resistors for control |
-
0
- NL NL89659D patent/NL89659C/xx active
- NL NLAANVRAGE7311497,A patent/NL175544B/xx unknown
- BE BE517178D patent/BE517178A/xx unknown
-
1952
- 1952-01-26 GB GB2191/52A patent/GB741545A/en not_active Expired
- 1952-01-26 GB GB13998/54A patent/GB741589A/en not_active Expired
-
1953
- 1953-01-19 US US331921A patent/US2761012A/en not_active Expired - Lifetime
- 1953-01-22 FR FR1074036D patent/FR1074036A/fr not_active Expired
- 1953-01-24 DE DEA20055A patent/DE964685C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE964685C (de) | 1957-05-29 |
| FR1074036A (fr) | 1954-09-30 |
| NL89659C (pt) | |
| GB741589A (en) | 1955-12-07 |
| NL175544B (nl) | |
| GB741545A (en) | 1955-12-07 |
| US2761012A (en) | 1956-08-28 |