BE540512A - - Google Patents
Info
- Publication number
- BE540512A BE540512A BE540512DA BE540512A BE 540512 A BE540512 A BE 540512A BE 540512D A BE540512D A BE 540512DA BE 540512 A BE540512 A BE 540512A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Emergency Protection Circuit Devices (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US450720A US2801284A (en) | 1954-08-18 | 1954-08-18 | Communication circuit employing gas tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE540512A true BE540512A (en:Method) |
Family
ID=23789232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE540512D BE540512A (en:Method) | 1954-08-18 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2801284A (en:Method) |
| BE (1) | BE540512A (en:Method) |
| DE (1) | DE1021033B (en:Method) |
| FR (1) | FR1128541A (en:Method) |
| GB (1) | GB778022A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB967252A (en) * | 1960-05-25 | 1964-08-19 | Pye Ltd | Automatic telephone systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE889658C (de) * | 1946-02-25 | 1953-09-14 | Ericsson Telefon Ab L M | Elektronenentladungsgeraet |
-
0
- BE BE540512D patent/BE540512A/xx unknown
-
1954
- 1954-08-18 US US450720A patent/US2801284A/en not_active Expired - Lifetime
-
1955
- 1955-04-08 FR FR1128541D patent/FR1128541A/fr not_active Expired
- 1955-05-25 DE DEW16760A patent/DE1021033B/de active Pending
- 1955-08-11 GB GB23180/55A patent/GB778022A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2801284A (en) | 1957-07-30 |
| DE1021033B (de) | 1957-12-19 |
| FR1128541A (fr) | 1957-01-07 |
| GB778022A (en) | 1957-07-03 |