NL220087A - - Google Patents
Info
- Publication number
- NL220087A NL220087A NL220087DA NL220087A NL 220087 A NL220087 A NL 220087A NL 220087D A NL220087D A NL 220087DA NL 220087 A NL220087 A NL 220087A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses
-
- 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)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2836357A GB858242A (en) | 1957-09-09 | 1957-09-09 | Circuit arrangement with cold cathode discharge tubes for automatic indication of the beginning and the end of impulse trains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL220087A true NL220087A (en:Method) |
Family
ID=10274479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL220087D NL220087A (en:Method) | 1957-09-09 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB858242A (en:Method) |
| NL (1) | NL220087A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183497A (en) * | 1961-10-27 | 1965-05-11 | Acf Ind | Indicating and alarm system |
-
0
- NL NL220087D patent/NL220087A/xx unknown
-
1957
- 1957-09-09 GB GB2836357A patent/GB858242A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB858242A (en) | 1961-01-11 |