IT944014B - Equipaggiamento individuale di linea telefonica - Google Patents
Equipaggiamento individuale di linea telefonicaInfo
- Publication number
- IT944014B IT944014B IT3246471A IT3246471A IT944014B IT 944014 B IT944014 B IT 944014B IT 3246471 A IT3246471 A IT 3246471A IT 3246471 A IT3246471 A IT 3246471A IT 944014 B IT944014 B IT 944014B
- Authority
- IT
- Italy
- Prior art keywords
- telephone line
- individual equipment
- individual
- equipment
- telephone
- Prior art date
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
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Mobile Radio Communication Systems (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7046461A FR2119188A5 (it) | 1970-12-23 | 1970-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT944014B true IT944014B (it) | 1973-04-20 |
Family
ID=9066266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT3246471A IT944014B (it) | 1970-12-23 | 1971-12-16 | Equipaggiamento individuale di linea telefonica |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT315249B (it) |
| AU (1) | AU464484B2 (it) |
| BE (1) | BE777084A (it) |
| BR (1) | BR7108538D0 (it) |
| CA (1) | CA938040A (it) |
| CH (1) | CH554624A (it) |
| ES (1) | ES398234A1 (it) |
| FR (1) | FR2119188A5 (it) |
| GB (1) | GB1355129A (it) |
| IT (1) | IT944014B (it) |
| NL (1) | NL7117638A (it) |
| NO (1) | NO136386C (it) |
| SE (1) | SE369263B (it) |
| SU (1) | SU584819A3 (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA74205B (en) * | 1973-02-12 | 1974-11-27 | Int Standard Electric Corp | Line condition signalling system |
-
1970
- 1970-12-23 FR FR7046461A patent/FR2119188A5/fr not_active Expired
-
1971
- 1971-12-02 AU AU36455/71A patent/AU464484B2/en not_active Expired
- 1971-12-16 IT IT3246471A patent/IT944014B/it active
- 1971-12-16 GB GB5842971A patent/GB1355129A/en not_active Expired
- 1971-12-16 NO NO464471A patent/NO136386C/no unknown
- 1971-12-17 AT AT1084371A patent/AT315249B/de not_active IP Right Cessation
- 1971-12-20 SU SU7101727209A patent/SU584819A3/ru active
- 1971-12-21 SE SE1636871A patent/SE369263B/xx unknown
- 1971-12-22 CH CH1871171A patent/CH554624A/xx not_active IP Right Cessation
- 1971-12-22 ES ES398234A patent/ES398234A1/es not_active Expired
- 1971-12-22 CA CA130878A patent/CA938040A/en not_active Expired
- 1971-12-22 NL NL7117638A patent/NL7117638A/xx not_active Application Discontinuation
- 1971-12-22 BE BE777084A patent/BE777084A/xx unknown
- 1971-12-23 BR BR853871A patent/BR7108538D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE777084A (fr) | 1972-06-22 |
| DE2162964A1 (de) | 1972-07-13 |
| SE369263B (it) | 1974-08-12 |
| NO136386C (no) | 1977-08-31 |
| AU464484B2 (en) | 1975-08-28 |
| CH554624A (de) | 1974-09-30 |
| DE2162964B2 (de) | 1976-01-02 |
| CA938040A (en) | 1973-12-04 |
| SU584819A3 (ru) | 1977-12-15 |
| BR7108538D0 (pt) | 1973-05-31 |
| FR2119188A5 (it) | 1972-08-04 |
| NO136386B (it) | 1977-05-16 |
| ES398234A1 (es) | 1975-03-16 |
| AT315249B (de) | 1974-05-10 |
| AU3645571A (en) | 1973-06-07 |
| NL7117638A (it) | 1972-06-27 |
| GB1355129A (en) | 1974-06-05 |
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