BE497802A - - Google Patents
Info
- Publication number
- BE497802A BE497802A BE497802DA BE497802A BE 497802 A BE497802 A BE 497802A BE 497802D A BE497802D A BE 497802DA BE 497802 A BE497802 A BE 497802A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/525—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using tubes in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Television Scanning (AREA)
- X-Ray Techniques (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2652514X | 1949-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE497802A true BE497802A (xx) |
Family
ID=10912746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE497802D BE497802A (xx) | 1949-09-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2652514A (xx) |
| BE (1) | BE497802A (xx) |
| DE (1) | DE861425C (xx) |
| FR (1) | FR1026828A (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2838706A (en) * | 1954-02-18 | 1958-06-10 | Raytheon Mfg Co | Method and apparatus for electronic commutation |
| US2827590A (en) * | 1955-05-17 | 1958-03-18 | Burroughs Corp | Multi-position switching systems |
| US2877376A (en) * | 1955-09-06 | 1959-03-10 | Itt | Phosphor screen device |
| US2931936A (en) * | 1958-12-08 | 1960-04-05 | Philco Corp | Character generating means for electronic information display systems |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR776476A (fr) * | 1933-07-16 | 1934-01-25 | Loewe Opta Gmbh | Tube à électrons |
| US2247350A (en) * | 1937-08-07 | 1941-07-01 | Firm Of Fernseh Aktien Ges | Cathode ray apparatus |
| US2214729A (en) * | 1939-08-31 | 1940-09-17 | Rca Corp | Magnetic field neutralizing system |
| US2395299A (en) * | 1939-11-13 | 1946-02-19 | Bell Telephone Labor Inc | Electron discharge apparatus |
| US2302311A (en) * | 1941-10-30 | 1942-11-17 | Alfred N Goldsmith | Electronic system |
| US2365476A (en) * | 1943-05-11 | 1944-12-19 | Du Mont Allen B Lab Inc | Electronic switch and rectangular wave generator |
| US2522055A (en) * | 1945-12-31 | 1950-09-12 | Gen Railway Signal Co | Electronic translating device |
| US2512655A (en) * | 1946-07-19 | 1950-06-27 | Hans W Kohler | Electrical apparatus |
| GB623038A (en) * | 1946-08-14 | 1949-05-11 | Gen Electric Co Ltd | Improvements in and relating to multi-channel signalling systems |
| US2573175A (en) * | 1948-09-04 | 1951-10-30 | Republic Aviat Corp | Electronic signaling system |
| US2534372A (en) * | 1948-11-19 | 1950-12-19 | Bell Telephone Labor Inc | Cathode-ray device |
| US2533401A (en) * | 1949-09-14 | 1950-12-12 | Nat Union Radio Corp | Coincidence detector of the focused rotary electron beam kind |
-
0
- BE BE497802D patent/BE497802A/xx unknown
-
1950
- 1950-08-11 DE DEA3191A patent/DE861425C/de not_active Expired
- 1950-08-18 US US180142A patent/US2652514A/en not_active Expired - Lifetime
- 1950-08-24 FR FR1026828D patent/FR1026828A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE861425C (de) | 1953-01-05 |
| US2652514A (en) | 1953-09-15 |
| FR1026828A (fr) | 1953-05-05 |