CH559492A5 - - Google Patents
Info
- Publication number
- CH559492A5 CH559492A5 CH302272A CH302272A CH559492A5 CH 559492 A5 CH559492 A5 CH 559492A5 CH 302272 A CH302272 A CH 302272A CH 302272 A CH302272 A CH 302272A CH 559492 A5 CH559492 A5 CH 559492A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/62—Keyboard equipment
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7109327A FR2129160A5 (xx) | 1971-03-17 | 1971-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH559492A5 true CH559492A5 (xx) | 1975-02-28 |
Family
ID=9073681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH302272A CH559492A5 (xx) | 1971-03-17 | 1972-03-01 |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE780114A (xx) |
| CH (1) | CH559492A5 (xx) |
| DE (1) | DE2212841A1 (xx) |
| FR (1) | FR2129160A5 (xx) |
| GB (1) | GB1380461A (xx) |
| IT (1) | IT952986B (xx) |
| NL (1) | NL7203468A (xx) |
| SE (1) | SE385258B (xx) |
-
1971
- 1971-03-17 FR FR7109327A patent/FR2129160A5/fr not_active Expired
-
1972
- 1972-03-01 CH CH302272A patent/CH559492A5/xx not_active IP Right Cessation
- 1972-03-02 BE BE780114A patent/BE780114A/xx unknown
- 1972-03-15 IT IT6781972A patent/IT952986B/it active
- 1972-03-16 DE DE19722212841 patent/DE2212841A1/de not_active Withdrawn
- 1972-03-16 GB GB1225072A patent/GB1380461A/en not_active Expired
- 1972-03-16 SE SE339672A patent/SE385258B/xx unknown
- 1972-03-16 NL NL7203468A patent/NL7203468A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2212841A1 (de) | 1972-09-28 |
| SE385258B (sv) | 1976-06-14 |
| NL7203468A (xx) | 1972-09-19 |
| IT952986B (it) | 1973-07-30 |
| GB1380461A (en) | 1975-01-15 |
| BE780114A (fr) | 1972-09-04 |
| FR2129160A5 (xx) | 1972-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |