IT943311B - Circuito di linea per sistema di comunicazione particolarmente tele fonica - Google Patents
Circuito di linea per sistema di comunicazione particolarmente tele fonicaInfo
- Publication number
- IT943311B IT943311B IT71165/71A IT7116571A IT943311B IT 943311 B IT943311 B IT 943311B IT 71165/71 A IT71165/71 A IT 71165/71A IT 7116571 A IT7116571 A IT 7116571A IT 943311 B IT943311 B IT 943311B
- Authority
- IT
- Italy
- Prior art keywords
- communication system
- line circuit
- system especially
- especially telephone
- telephone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10031470A | 1970-12-21 | 1970-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT943311B true IT943311B (it) | 1973-04-02 |
Family
ID=22279157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT71165/71A IT943311B (it) | 1970-12-21 | 1971-12-20 | Circuito di linea per sistema di comunicazione particolarmente tele fonica |
Country Status (8)
Country | Link |
---|---|
US (1) | US3697701A (it) |
JP (1) | JPS5141487B1 (it) |
BE (1) | BE776666A (it) |
CA (1) | CA961967A (it) |
DE (1) | DE2163437C3 (it) |
FR (1) | FR2119469A5 (it) |
GB (1) | GB1369669A (it) |
IT (1) | IT943311B (it) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4035592A (en) * | 1970-12-10 | 1977-07-12 | Societe Francaise Des Telephones Ericsson | Subscriber monitoring unit for electronic telephone exchanges |
US4417335A (en) * | 1979-12-19 | 1983-11-22 | Gte Automatic Electric Labs Inc. | Digital satellite telephone office |
JPS57164651A (en) * | 1981-03-20 | 1982-10-09 | Fujitsu Ltd | Control system for switchboard |
GB2173417B (en) * | 1985-04-12 | 1989-01-11 | Atomic Energy Authority Uk | Liquid-liquid extraction columns |
-
1970
- 1970-12-21 US US100314A patent/US3697701A/en not_active Expired - Lifetime
-
1971
- 1971-07-15 CA CA118,333A patent/CA961967A/en not_active Expired
- 1971-12-14 BE BE776666A patent/BE776666A/xx unknown
- 1971-12-16 JP JP46101581A patent/JPS5141487B1/ja active Pending
- 1971-12-17 GB GB5860571A patent/GB1369669A/en not_active Expired
- 1971-12-20 IT IT71165/71A patent/IT943311B/it active
- 1971-12-20 FR FR7145683A patent/FR2119469A5/fr not_active Expired
- 1971-12-21 DE DE2163437A patent/DE2163437C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2163437C3 (de) | 1974-01-31 |
FR2119469A5 (it) | 1972-08-04 |
BE776666A (fr) | 1972-04-04 |
DE2163437A1 (de) | 1972-06-29 |
US3697701A (en) | 1972-10-10 |
CA961967A (en) | 1975-01-28 |
GB1369669A (en) | 1974-10-09 |
JPS4713153A (it) | 1972-07-04 |
JPS5141487B1 (it) | 1976-11-10 |
DE2163437B2 (de) | 1973-07-05 |
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