NL7214389A - - Google Patents
Info
- Publication number
- NL7214389A NL7214389A NL7214389A NL7214389A NL7214389A NL 7214389 A NL7214389 A NL 7214389A NL 7214389 A NL7214389 A NL 7214389A NL 7214389 A NL7214389 A NL 7214389A NL 7214389 A NL7214389 A NL 7214389A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT30828/71A IT946045B (it) | 1971-11-08 | 1971-11-08 | Apparecchiatura per il collegamen to reciproco selettivo bidireziona le di utenti interni o di utenti esterni in una centrale telefonica |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7214389A true NL7214389A (xx) | 1973-05-10 |
Family
ID=11232342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7214389A NL7214389A (xx) | 1971-11-08 | 1972-10-24 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE781881A (xx) |
| DE (1) | DE2248422C3 (xx) |
| ES (1) | ES408344A1 (xx) |
| FR (1) | FR2159854A5 (xx) |
| IT (1) | IT946045B (xx) |
| NL (1) | NL7214389A (xx) |
| ZA (1) | ZA723830B (xx) |
-
1971
- 1971-11-08 IT IT30828/71A patent/IT946045B/it active
-
1972
- 1972-03-07 FR FR7207849A patent/FR2159854A5/fr not_active Expired
- 1972-04-10 BE BE781881A patent/BE781881A/xx unknown
- 1972-06-05 ZA ZA723830A patent/ZA723830B/xx unknown
- 1972-10-03 DE DE2248422A patent/DE2248422C3/de not_active Expired
- 1972-10-24 NL NL7214389A patent/NL7214389A/xx unknown
- 1972-10-28 ES ES408344A patent/ES408344A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2248422C3 (de) | 1979-04-12 |
| IT946045B (it) | 1973-05-21 |
| DE2248422B2 (de) | 1978-08-10 |
| ES408344A1 (es) | 1975-11-01 |
| DE2248422A1 (de) | 1973-05-24 |
| BE781881A (fr) | 1972-07-31 |
| ZA723830B (en) | 1973-03-28 |
| FR2159854A5 (xx) | 1973-06-22 |