NL68476C - - Google Patents
Info
- Publication number
- NL68476C NL68476C NL68476DA NL68476C NL 68476 C NL68476 C NL 68476C NL 68476D A NL68476D A NL 68476DA NL 68476 C NL68476 C NL 68476C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US240698A US2201573A (en) | 1938-11-16 | 1938-11-16 | Telephone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL68476C true NL68476C (forum.php) |
Family
ID=22907570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL68476D NL68476C (forum.php) | 1938-11-16 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2201573A (forum.php) |
| CH (1) | CH277164A (forum.php) |
| FR (1) | FR951376A (forum.php) |
| GB (1) | GB636920A (forum.php) |
| NL (1) | NL68476C (forum.php) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2504274A (en) * | 1945-04-16 | 1950-04-18 | Ericsson Telefon Ab L M | System for automatic telephone exchanges with crossbar switches and private branch exchange trunk lines |
| US2574903A (en) * | 1948-04-08 | 1951-11-13 | Kellogg Switchboard & Supply | Translator for shifted lines and parties |
| US2674657A (en) * | 1949-04-04 | 1954-04-06 | Itt | Primary-secondary-spread crossbar telephone system |
| BE522048A (forum.php) * | 1949-04-04 | |||
| US2680781A (en) * | 1949-11-08 | 1954-06-08 | Bell Telephone Labor Inc | Translating arrangement |
| US2710893A (en) * | 1951-03-27 | 1955-06-14 | Itt | Automatic telephone system and translator therefor |
| FR2958209B1 (fr) | 2010-04-01 | 2012-07-20 | Oberthur Technologies | Document de valeur, a couches de protection respectivement mate et brillante |
-
0
- NL NL68476D patent/NL68476C/xx active
-
1938
- 1938-11-16 US US240698A patent/US2201573A/en not_active Expired - Lifetime
-
1947
- 1947-08-04 CH CH277164D patent/CH277164A/fr unknown
- 1947-08-06 FR FR951376D patent/FR951376A/fr not_active Expired
- 1947-08-07 GB GB21768/47A patent/GB636920A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR951376A (fr) | 1949-10-24 |
| GB636920A (en) | 1950-05-10 |
| CH277164A (fr) | 1951-08-15 |
| US2201573A (en) | 1940-05-21 |