NL291558A - - Google Patents
Info
- Publication number
- NL291558A NL291558A NL291558DA NL291558A NL 291558 A NL291558 A NL 291558A NL 291558D A NL291558D A NL 291558DA NL 291558 A NL291558 A NL 291558A
- 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
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE424062 | 1962-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL291558A true NL291558A (fr) |
Family
ID=20263775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL291558D NL291558A (fr) | 1962-04-17 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3260801A (fr) |
| DE (1) | DE1178122B (fr) |
| DK (1) | DK109696C (fr) |
| NL (1) | NL291558A (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1916760A (en) * | 1932-08-23 | 1933-07-04 | Bell Telephone Labor Inc | Telephone exchange system |
| US2352742A (en) * | 1941-06-28 | 1944-07-04 | Bell Telephone Labor Inc | Pulse register circuit |
| GB680900A (en) * | 1949-10-05 | 1952-10-15 | Dennis Harold Ward | Improvements in hampers for carboys and other containers |
| US2807796A (en) * | 1955-03-18 | 1957-09-24 | Bell Telephone Labor Inc | Register circuit |
| BE559667A (fr) * | 1956-08-01 |
-
0
- NL NL291558D patent/NL291558A/xx unknown
-
1963
- 1963-04-01 US US269422A patent/US3260801A/en not_active Expired - Lifetime
- 1963-04-11 DE DET23833A patent/DE1178122B/de active Pending
- 1963-04-16 DK DK177363AA patent/DK109696C/da active
Also Published As
| Publication number | Publication date |
|---|---|
| DK109696C (da) | 1968-06-10 |
| US3260801A (en) | 1966-07-12 |
| DE1178122B (de) | 1964-09-17 |