BE517334A - - Google Patents
Info
- Publication number
- BE517334A BE517334A BE517334DA BE517334A BE 517334 A BE517334 A BE 517334A BE 517334D A BE517334D A BE 517334DA BE 517334 A BE517334 A BE 517334A
- Authority
- BE
- Belgium
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE312614X | 1952-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE517334A true BE517334A (de) |
Family
ID=6135960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE517334D BE517334A (de) | 1952-02-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2764714A (de) |
| BE (1) | BE517334A (de) |
| CH (1) | CH312614A (de) |
| NL (2) | NL175494B (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2871463A (en) * | 1952-08-01 | 1959-01-27 | Gen Electric | Method and apparatus for transmission of intelligence |
| US2963595A (en) * | 1958-11-10 | 1960-12-06 | Beckman Instruments Inc | Relay switching circuit |
| US3272012A (en) * | 1959-09-09 | 1966-09-13 | Du Pont | High speed scanning system |
| NL6606166A (de) * | 1966-05-06 | 1967-11-07 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1787550A (en) * | 1928-08-30 | 1931-01-06 | Union Switch & Signal Co | Electrical apparatus |
| US2303875A (en) * | 1940-03-28 | 1942-12-01 | Union Switch & Signal Co | Remote control system |
| US2424243A (en) * | 1944-01-19 | 1947-07-22 | Percival D Lowell | Remote control system |
| US2444039A (en) * | 1945-06-16 | 1948-06-29 | Bell Telephone Labor Inc | Signaling system |
| US2446216A (en) * | 1945-07-16 | 1948-08-03 | Union Switch & Signal Co | Electrical control apparatus |
-
0
- BE BE517334D patent/BE517334A/xx unknown
- NL NL86996D patent/NL86996C/xx active
- NL NLAANVRAGE7903890,A patent/NL175494B/xx unknown
-
1953
- 1953-01-27 US US333573A patent/US2764714A/en not_active Expired - Lifetime
- 1953-01-31 CH CH312614D patent/CH312614A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH312614A (de) | 1956-01-31 |
| NL86996C (de) | |
| US2764714A (en) | 1956-09-25 |
| NL175494B (nl) |