NL74029C - - Google Patents
Info
- Publication number
- NL74029C NL74029C NL74029DA NL74029C NL 74029 C NL74029 C NL 74029C NL 74029D A NL74029D A NL 74029DA NL 74029 C NL74029 C NL 74029C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR267006X | 1946-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL74029C true NL74029C (it) |
Family
ID=8885594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL74029D NL74029C (it) | 1946-10-05 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2559603A (it) |
| BE (1) | BE481264A (it) |
| CH (1) | CH267006A (it) |
| FR (1) | FR934661A (it) |
| GB (1) | GB657492A (it) |
| NL (1) | NL74029C (it) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL87558C (it) * | 1949-06-24 | |||
| NL86409C (it) * | 1949-10-26 | |||
| US2747021A (en) * | 1950-09-21 | 1956-05-22 | Gen Electric Co Ltd | Telecommunication systems embodying automatic exchanges |
| GB759693A (en) * | 1951-02-16 | 1956-10-24 | Gen Electric Co Ltd | Improvements in or relating to automatic telephone systems |
| US2872518A (en) * | 1951-11-23 | 1959-02-03 | Gen Dynamics Corp | Party line telephone system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1905359A (en) * | 1931-11-14 | 1933-04-25 | American Telephone & Telegraph | Channel selection |
| US2205406A (en) * | 1937-07-15 | 1940-06-25 | Western Union Telegraph Co | Multichannel telegraph system |
| US2176901A (en) * | 1937-09-09 | 1939-10-24 | Western Union Telegraph Co | Multichannel telegraph system |
| NL62795C (it) * | 1940-05-28 | |||
| USRE23313E (en) * | 1941-05-13 | 1950-12-26 | Mitchell | |
| US2398018A (en) * | 1941-09-26 | 1946-04-09 | Linley Anthony | Manufacture of permanent magnets |
| US2462896A (en) * | 1945-11-14 | 1949-03-01 | Standard Telephones Cables Ltd | Line finder synchronizer |
| US2490833A (en) * | 1947-04-26 | 1949-12-13 | Fed Telecomm Labs Inc | All electronic line finder and selector system |
-
0
- NL NL74029D patent/NL74029C/xx active
- BE BE481264D patent/BE481264A/xx unknown
-
1946
- 1946-10-05 FR FR934661D patent/FR934661A/fr not_active Expired
-
1947
- 1947-10-06 CH CH267006D patent/CH267006A/de unknown
- 1947-12-01 GB GB31691/47A patent/GB657492A/en not_active Expired
-
1948
- 1948-01-20 US US3253A patent/US2559603A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2559603A (en) | 1951-07-10 |
| CH267006A (de) | 1950-02-28 |
| FR934661A (fr) | 1948-05-28 |
| BE481264A (it) | |
| GB657492A (en) | 1951-09-19 |