NO133864C - - Google Patents
Info
- Publication number
- NO133864C NO133864C NO485570A NO485570A NO133864C NO 133864 C NO133864 C NO 133864C NO 485570 A NO485570 A NO 485570A NO 485570 A NO485570 A NO 485570A NO 133864 C NO133864 C NO 133864C
- Authority
- NO
- Norway
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH187070A CH520453A (en) | 1970-02-09 | 1970-02-09 | Method and device for generating signals which indicate the occupancy status and / or service signals on a subscriber line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO133864B NO133864B (en) | 1976-03-29 |
| NO133864C true NO133864C (en) | 1976-07-14 |
Family
ID=4220514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO485570A NO133864C (en) | 1970-02-09 | 1970-12-17 |
Country Status (7)
| Country | Link |
|---|---|
| CH (1) | CH520453A (en) |
| DE (1) | DE2101052C3 (en) |
| ES (1) | ES388102A1 (en) |
| FI (1) | FI57858C (en) |
| GB (1) | GB1327673A (en) |
| NO (1) | NO133864C (en) |
| SE (1) | SE418237B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19609233B4 (en) * | 1996-03-09 | 2005-09-01 | Deutsche Telekom Ag | Method for generating a control signal in a pulse dialing method for a public exchange |
| DE102005025410A1 (en) * | 2005-06-02 | 2006-12-07 | Siemens Ag | Method and test device for checking the transmission of a charge pulse having a specific frequency |
-
1970
- 1970-02-09 CH CH187070A patent/CH520453A/en not_active IP Right Cessation
- 1970-12-17 NO NO485570A patent/NO133864C/no unknown
- 1970-12-31 FI FI352470A patent/FI57858C/en active
-
1971
- 1971-01-11 DE DE19712101052 patent/DE2101052C3/en not_active Expired
- 1971-02-02 SE SE127171A patent/SE418237B/en unknown
- 1971-02-09 ES ES388102A patent/ES388102A1/en not_active Expired
- 1971-04-19 GB GB2076071A patent/GB1327673A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FI57858C (en) | 1980-10-10 |
| DE2101052B2 (en) | 1978-05-24 |
| ES388102A1 (en) | 1973-05-01 |
| FI57858B (en) | 1980-06-30 |
| DE2101052A1 (en) | 1971-08-19 |
| DE2101052C3 (en) | 1979-01-18 |
| NO133864B (en) | 1976-03-29 |
| GB1327673A (en) | 1973-08-22 |
| CH520453A (en) | 1972-03-15 |
| SE418237B (en) | 1981-05-11 |