LU63172A1 - - Google Patents
Info
- Publication number
- LU63172A1 LU63172A1 LU63172DA LU63172A1 LU 63172 A1 LU63172 A1 LU 63172A1 LU 63172D A LU63172D A LU 63172DA LU 63172 A1 LU63172 A1 LU 63172A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702024360 DE2024360C (de) | 1970-05-19 | Schaltungsanordnung für Fernsprechanlagen mit mehreren Verbindungsleitungen und mehreren, mittels Betätigung individueller, den Leitungen zugeordneter Tasten, an diesen Leitungen anschaltbaren Sprechstellen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU63172A1 true LU63172A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-09-01 |
Family
ID=5771461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU63172D LU63172A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1970-05-19 | 1971-05-17 |
Country Status (7)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2605540A1 (de) * | 1976-02-10 | 1977-08-11 | Deutsche Telephonwerk Kabel | Fernsprechanlage, insbesondere tastengesteuerte reihenanlage mit mithoer- mitsprecheinrichtungen |
-
1971
- 1971-01-27 CH CH120371A patent/CH521075A/de not_active IP Right Cessation
- 1971-02-19 AT AT145371A patent/AT308841B/de not_active IP Right Cessation
- 1971-05-10 NL NL7106392A patent/NL154083B/xx unknown
- 1971-05-13 FR FR7117292A patent/FR2112891A5/fr not_active Expired
- 1971-05-17 LU LU63172D patent/LU63172A1/xx unknown
- 1971-05-18 GB GB1560171A patent/GB1309498A/en not_active Expired
- 1971-05-19 BE BE767393A patent/BE767393A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7106392A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-11-23 |
| DE2024360A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-11-25 |
| CH521075A (de) | 1972-03-31 |
| NL154083B (nl) | 1977-07-15 |
| GB1309498A (en) | 1973-03-14 |
| DE2024360B2 (de) | 1971-11-25 |
| AT308841B (de) | 1973-07-25 |
| BE767393A (fr) | 1971-11-19 |
| FR2112891A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-06-23 |