NL78645C - - Google Patents
Info
- Publication number
- NL78645C NL78645C NL137767A NL137767A NL78645C NL 78645 C NL78645 C NL 78645C NL 137767 A NL137767 A NL 137767A NL 137767 A NL137767 A NL 137767A NL 78645 C NL78645 C NL 78645C
- Authority
- NL
- Netherlands
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)
- Monitoring And Testing Of Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE655573X | 1945-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL78645C true NL78645C (et) | 1955-08-15 |
Family
ID=20314162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL137767A NL78645C (et) | 1945-04-04 | 1947-12-30 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2620401A (et) |
| FR (1) | FR959047A (et) |
| GB (1) | GB655573A (et) |
| NL (1) | NL78645C (et) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE510536A (et) * | 1951-04-10 | |||
| US2853694A (en) * | 1952-06-11 | 1958-09-23 | Bell Telephone Labor Inc | Electron discharge tube circuit |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1337715A (en) * | 1920-04-20 | Telephone system | ||
| GB295449A (en) * | 1927-05-10 | 1928-08-10 | Standard Telephones Cables Ltd | Improvements in telephone systems |
| US1870621A (en) * | 1927-11-21 | 1932-08-09 | John E Gardner | Automatic telephone system |
| US1886216A (en) * | 1929-06-21 | 1932-11-01 | Ericsson Telefon Ab L M | Electrical signaling and operating circuit |
| US1964526A (en) * | 1933-03-31 | 1934-06-26 | Western Electric Co | Testing system and apparatus therefor |
| GB478652A (en) * | 1936-07-21 | 1938-01-21 | Automatic Electric Co Ltd | Improvements in or relating to automatic switch controlling circuits for automatic telephone or like signalling systems |
| US2164335A (en) * | 1938-04-13 | 1939-07-04 | Bell Telephone Labor Inc | Telephone system |
| US2317191A (en) * | 1941-01-24 | 1943-04-20 | Bell Telephone Labor Inc | Telephone system |
| US2308637A (en) * | 1941-12-20 | 1943-01-19 | Bell Telephone Labor Inc | Telephone system |
| US2332912A (en) * | 1942-05-01 | 1943-10-26 | Bell Telephone Labor Inc | Telephone system |
| US2387018A (en) * | 1942-08-05 | 1945-10-16 | Bell Lab Inc | Communication system |
| US2379715A (en) * | 1942-10-09 | 1945-07-03 | Bell Telephone Labor Inc | Communication system |
-
1947
- 1947-07-10 US US760058A patent/US2620401A/en not_active Expired - Lifetime
- 1947-12-23 GB GB34029/47A patent/GB655573A/en not_active Expired
- 1947-12-30 NL NL137767A patent/NL78645C/xx active
- 1947-12-31 FR FR959047D patent/FR959047A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR959047A (et) | 1950-03-23 |
| US2620401A (en) | 1952-12-02 |
| GB655573A (en) | 1951-07-25 |