NL251581A - - Google Patents
Info
- Publication number
- NL251581A NL251581A NL251581A NL251581A NL251581A NL 251581 A NL251581 A NL 251581A NL 251581 A NL251581 A NL 251581A NL 251581 A NL251581 A NL 251581A NL 251581 A NL251581 A NL 251581A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE467959 | 1959-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL251581A true NL251581A (it) | 1964-02-25 |
Family
ID=20264723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL251581A NL251581A (it) | 1959-05-15 | 1960-05-13 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3222458A (it) |
| BE (1) | BE590793A (it) |
| DE (1) | DE1109743B (it) |
| DK (1) | DK96797C (it) |
| FR (1) | FR1260858A (it) |
| GB (1) | GB946076A (it) |
| NL (1) | NL251581A (it) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1925681A (en) * | 1931-08-04 | 1933-09-05 | Western Electric Co | Telephone system |
| US2151767A (en) * | 1936-08-04 | 1939-03-28 | Bell Telephone Labor Inc | Telephone system |
| US2621257A (en) * | 1945-12-03 | 1952-12-09 | Automatic Elect Lab | Relay automatic telephone system |
| BE513206A (it) * | 1949-12-28 | |||
| US2717923A (en) * | 1951-06-05 | 1955-09-13 | Stromberg Carlson Co | Code call circuit |
-
1960
- 1960-05-12 DK DK189860AA patent/DK96797C/da active
- 1960-05-13 BE BE590793A patent/BE590793A/fr unknown
- 1960-05-13 DE DET18366A patent/DE1109743B/de active Pending
- 1960-05-13 NL NL251581A patent/NL251581A/xx unknown
- 1960-05-13 GB GB17005/60A patent/GB946076A/en not_active Expired
- 1960-05-14 FR FR827215A patent/FR1260858A/fr not_active Expired
- 1960-05-16 US US29539A patent/US3222458A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DK96797C (da) | 1963-09-02 |
| FR1260858A (fr) | 1961-05-12 |
| BE590793A (fr) | 1960-09-01 |
| US3222458A (en) | 1965-12-07 |
| GB946076A (en) | 1964-01-08 |
| DE1109743B (de) | 1961-06-29 |