NL69497C - - Google Patents
Info
- Publication number
- NL69497C NL69497C NL69497DA NL69497C NL 69497 C NL69497 C NL 69497C NL 69497D A NL69497D A NL 69497DA NL 69497 C NL69497 C NL 69497C
- 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)
- Exchange Systems With Centralized Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US295010A US2236246A (en) | 1939-09-15 | 1939-09-15 | Telephone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL69497C true NL69497C (es) |
Family
ID=23135844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL69497D NL69497C (es) | 1939-09-15 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2236246A (es) |
| FR (1) | FR963427A (es) |
| GB (1) | GB642455A (es) |
| NL (1) | NL69497C (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2450516A (en) * | 1944-01-11 | 1948-10-05 | Bell Telephone Labor Inc | Telemetric data transmission system |
| US2674657A (en) * | 1949-04-04 | 1954-04-06 | Itt | Primary-secondary-spread crossbar telephone system |
| US3023281A (en) * | 1959-05-21 | 1962-02-27 | Gen Dynamics Corp | Electronic switching system |
-
0
- FR FR963427D patent/FR963427A/fr not_active Expired
- NL NL69497D patent/NL69497C/xx active
-
1939
- 1939-09-15 US US295010A patent/US2236246A/en not_active Expired - Lifetime
-
1948
- 1948-02-27 GB GB6072/48A patent/GB642455A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2236246A (en) | 1941-03-25 |
| FR963427A (es) | 1950-07-10 |
| GB642455A (en) | 1950-09-06 |