BE500347A - - Google Patents
Info
- Publication number
- BE500347A BE500347A BE500347DA BE500347A BE 500347 A BE500347 A BE 500347A BE 500347D A BE500347D A BE 500347DA BE 500347 A BE500347 A BE 500347A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL287410X | 1949-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE500347A true BE500347A (en:Method) | 1900-01-01 |
Family
ID=19782593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE500347D BE500347A (en:Method) | 1949-12-31 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2709203A (en:Method) |
| BE (1) | BE500347A (en:Method) |
| CH (1) | CH287410A (en:Method) |
| DE (1) | DE844173C (en:Method) |
| FR (1) | FR1034721A (en:Method) |
| GB (1) | GB683995A (en:Method) |
| NL (1) | NL150786B (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1034629A (fr) * | 1950-11-09 | 1953-07-28 | Materiel Telephonique | Perfectionnements aux systèmes de signalisation utilisés pour caractériser les lignes d'abonnés à un réseau téléphonique |
| NL127302C (en:Method) * | 1958-04-28 | |||
| BE622707A (en:Method) * | 1961-09-22 | |||
| DE1190998B (de) * | 1962-06-08 | 1965-04-15 | Standard Elektrik Lorenz Ag | Schaltungsanordnung zur Auswertung des Buendelzustandes in Fernmelde-, insbesondere Fernsprechanlagen |
| BE640318A (en:Method) * | 1963-04-11 | |||
| US3278688A (en) * | 1963-06-11 | 1966-10-11 | Stromberg Carlson Corp | Telephone circuit having means for preventing double connections |
| US3316356A (en) * | 1966-05-13 | 1967-04-25 | Bell Telephone Canada | Selector circuit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE22861E (en) * | 1947-04-08 | Electric selection controlling | ||
| GB439323A (en) * | 1934-09-24 | 1935-12-04 | Siemens Brothers & Co Ltd | Improvements relating to automatic telephone and like selective systems |
| US2336861A (en) * | 1942-09-19 | 1943-12-14 | Bell Telephone Labor Inc | Selector switch circuit |
| GB571520A (en) * | 1944-01-12 | 1945-08-28 | Siemens Brothers & Co Ltd | Improvements relating to electric selective signalling systems |
| GB578984A (en) * | 1945-01-01 | 1946-07-18 | Siemens Brothers & Co Ltd | Improvements relating to automatic telephone systems |
| US2576097A (en) * | 1945-07-23 | 1951-11-27 | Int Standard Electric Corp | Automatic telephone selective switching system |
-
0
- NL NL707014804A patent/NL150786B/xx unknown
- BE BE500347D patent/BE500347A/xx unknown
-
1950
- 1950-12-18 US US201321A patent/US2709203A/en not_active Expired - Lifetime
- 1950-12-28 GB GB31486/50A patent/GB683995A/en not_active Expired
- 1950-12-29 CH CH287410D patent/CH287410A/de unknown
- 1950-12-29 FR FR1034721D patent/FR1034721A/fr not_active Expired
- 1950-12-29 DE DEN3315A patent/DE844173C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2709203A (en) | 1955-05-24 |
| GB683995A (en) | 1952-12-10 |
| FR1034721A (fr) | 1953-07-30 |
| NL150786B (nl) | |
| DE844173C (de) | 1952-07-17 |
| CH287410A (de) | 1952-11-30 |