CH589987A5 - - Google Patents
Info
- Publication number
- CH589987A5 CH589987A5 CH807074A CH807074A CH589987A5 CH 589987 A5 CH589987 A5 CH 589987A5 CH 807074 A CH807074 A CH 807074A CH 807074 A CH807074 A CH 807074A CH 589987 A5 CH589987 A5 CH 589987A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7324585A FR2236323A2 (en) | 1971-07-09 | 1973-07-04 | Accounting circuitry for telphone exchange - useful in private exchanges, gives control and apportionment of transmission costs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH589987A5 true CH589987A5 (https=) | 1977-07-29 |
Family
ID=9122076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH807074A CH589987A5 (https=) | 1973-07-04 | 1974-06-13 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE816802R (https=) |
| CH (1) | CH589987A5 (https=) |
| DE (1) | DE2431803C2 (https=) |
| GB (1) | GB1438910A (https=) |
| IT (1) | IT1050527B (https=) |
| SE (1) | SE403548B (https=) |
-
1974
- 1974-06-13 CH CH807074A patent/CH589987A5/xx not_active IP Right Cessation
- 1974-06-25 BE BE145830A patent/BE816802R/xx active
- 1974-07-02 SE SE7408712A patent/SE403548B/xx unknown
- 1974-07-02 DE DE2431803A patent/DE2431803C2/de not_active Expired
- 1974-07-03 IT IT69113/74A patent/IT1050527B/it active
- 1974-07-03 GB GB2954274A patent/GB1438910A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1050527B (it) | 1981-03-10 |
| DE2431803C2 (de) | 1982-12-16 |
| SE7408712L (https=) | 1975-01-07 |
| GB1438910A (en) | 1976-06-09 |
| SE403548B (sv) | 1978-08-21 |
| DE2431803A1 (de) | 1975-01-23 |
| BE816802R (fr) | 1974-12-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |