DK480276A - - Google Patents
Info
- Publication number
- DK480276A DK480276A DK480276A DK480276A DK480276A DK 480276 A DK480276 A DK 480276A DK 480276 A DK480276 A DK 480276A DK 480276 A DK480276 A DK 480276A DK 480276 A DK480276 A DK 480276A
- Authority
- DK
- Denmark
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
- H04M3/2209—Arrangements for supervision, monitoring or testing for lines also used for data transmission
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Amplifiers (AREA)
- Control Of Eletrric Generators (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7511950A SE387807B (en) | 1975-10-24 | 1975-10-24 | TELECOMMUNICATION SYSTEM IN WHICH AN ALARM IN THE EVENT OF AN INTERRUPTION IN A TWO-WAY TRANSMISSION OF SIGNALS IS ORDERED TO BE ABLE TO INHIBIT |
SE7511950 | 1975-10-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK480276A true DK480276A (en) | 1977-04-25 |
DK141230B DK141230B (en) | 1980-02-04 |
DK141230C DK141230C (en) | 1980-07-21 |
Family
ID=20325897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK480276AA DK141230B (en) | 1975-10-24 | 1976-10-22 | Telecommunication system with automatic alarm when interrupting signal transmission. |
Country Status (4)
Country | Link |
---|---|
DK (1) | DK141230B (en) |
FI (1) | FI62437C (en) |
NO (1) | NO137876C (en) |
SE (1) | SE387807B (en) |
-
1975
- 1975-10-24 SE SE7511950A patent/SE387807B/en not_active IP Right Cessation
-
1976
- 1976-10-04 FI FI762818A patent/FI62437C/en not_active IP Right Cessation
- 1976-10-22 DK DK480276AA patent/DK141230B/en not_active IP Right Cessation
- 1976-10-22 NO NO763607A patent/NO137876C/en unknown
Also Published As
Publication number | Publication date |
---|---|
DK141230B (en) | 1980-02-04 |
NO137876B (en) | 1978-01-30 |
DK141230C (en) | 1980-07-21 |
SE387807B (en) | 1976-09-13 |
FI62437C (en) | 1982-12-10 |
FI762818A (en) | 1977-04-25 |
NO763607L (en) | 1977-04-26 |
NO137876C (en) | 1978-05-24 |
FI62437B (en) | 1982-08-31 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUP | Patent expired |