NL245290A - - Google Patents
Info
- Publication number
- NL245290A NL245290A NL245290DA NL245290A NL 245290 A NL245290 A NL 245290A NL 245290D A NL245290D A NL 245290DA NL 245290 A NL245290 A NL 245290A
- 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)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US395942A US2806088A (en) | 1953-12-03 | 1953-12-03 | Communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL245290A true NL245290A (pt) |
Family
ID=23565185
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL245290D NL245290A (pt) | 1953-12-03 | ||
| NL105759D NL105759C (pt) | 1953-12-03 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL105759D NL105759C (pt) | 1953-12-03 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2806088A (pt) |
| DE (1) | DE1098046B (pt) |
| GB (1) | GB763564A (pt) |
| NL (2) | NL105759C (pt) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE636734A (pt) * | 1956-09-28 | |||
| US2894073A (en) * | 1957-12-31 | 1959-07-07 | Bell Telephone Labor Inc | Line concentrator checking arrangement |
| US2921139A (en) * | 1957-12-31 | 1960-01-12 | Bell Telephone Labor Inc | Line concentrator signaling system |
| US2962555A (en) * | 1957-12-31 | 1960-11-29 | Bell Telephone Labor Inc | Line concentrator system |
| FR1187979A (fr) * | 1958-01-14 | 1959-09-17 | Constr Telephoniques | Perfectionnements aux systèmes téléphoniques |
| US3521002A (en) * | 1966-10-12 | 1970-07-21 | Stromberg Carlson Corp | Pathfinding system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE736031C (de) * | 1940-08-30 | 1943-06-05 | Siemens Ag | Schaltungsanordnung fuer Fernsprechanlagen mit Haupt- und Unteraemtern |
| US2532097A (en) * | 1946-12-31 | 1950-11-28 | Bell Telephone Labor Inc | Decentralized line switch arrangement |
| US2585904A (en) * | 1948-10-29 | 1952-02-19 | Bell Telephone Labor Inc | Crossbar telephone system |
| US2531615A (en) * | 1948-10-29 | 1950-11-28 | Bell Telephone Labor Inc | Telephone system |
| NL151089B (nl) * | 1949-01-29 | Organon Labor Ltd | Werkwijze voor het bereiden van 2beta-amino-3alfa-hydroxy-5alfa-androstaanderivaten, alsmede werkwijze ter bereiding van farmaceutische preparaten en aldus verkregen gevormde preparaten. |
-
0
- NL NL245290D patent/NL245290A/xx unknown
- NL NL105759D patent/NL105759C/xx active
-
1953
- 1953-12-03 US US395942A patent/US2806088A/en not_active Expired - Lifetime
-
1954
- 1954-11-03 DE DEW15230A patent/DE1098046B/de active Pending
- 1954-12-01 GB GB34799/54A patent/GB763564A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2806088A (en) | 1957-09-10 |
| NL105759C (pt) | |
| DE1098046B (de) | 1961-01-26 |
| GB763564A (en) | 1956-12-12 |