IT8821495A0 - Sistema di telefoni intercomunicanti su linea bifilare. - Google Patents
Sistema di telefoni intercomunicanti su linea bifilare.Info
- Publication number
- IT8821495A0 IT8821495A0 IT8821495A IT2149588A IT8821495A0 IT 8821495 A0 IT8821495 A0 IT 8821495A0 IT 8821495 A IT8821495 A IT 8821495A IT 2149588 A IT2149588 A IT 2149588A IT 8821495 A0 IT8821495 A0 IT 8821495A0
- Authority
- IT
- Italy
- Prior art keywords
- telephone system
- wire line
- intercommunicating telephone
- intercommunicating
- wire
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8821495A IT1226312B (it) | 1988-07-26 | 1988-07-26 | Sistema di telefoni intercomunicanti su linea bifilare. |
DE68920085T DE68920085D1 (de) | 1988-07-26 | 1989-06-08 | Fernsprechsystem mit Interkommunikation auf zweiadriger Leitung. |
AT89201470T ATE116085T1 (de) | 1988-07-26 | 1989-06-08 | Fernsprechsystem mit interkommunikation auf zweiadriger leitung. |
EP89201470A EP0352827B1 (en) | 1988-07-26 | 1989-06-08 | Intercommunicating telephone set system on bifilar line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8821495A IT1226312B (it) | 1988-07-26 | 1988-07-26 | Sistema di telefoni intercomunicanti su linea bifilare. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8821495A0 true IT8821495A0 (it) | 1988-07-26 |
IT1226312B IT1226312B (it) | 1990-12-27 |
Family
ID=11182669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8821495A IT1226312B (it) | 1988-07-26 | 1988-07-26 | Sistema di telefoni intercomunicanti su linea bifilare. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0352827B1 (it) |
AT (1) | ATE116085T1 (it) |
DE (1) | DE68920085D1 (it) |
IT (1) | IT1226312B (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9400239A (nl) * | 1994-02-17 | 1995-10-02 | Grid Telecom Systems Bv | Huistelefoonsysteem. |
GB9407696D0 (en) * | 1994-04-19 | 1994-06-15 | Marikon Resources Inc | A telephone exchange system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8410369D0 (en) * | 1984-04-19 | 1984-05-31 | British Telecomm | Telecommunication switching system |
CA1244978A (en) * | 1985-04-25 | 1988-11-15 | Francisco A. Middleton | Single line telephone communication system |
GB8600712D0 (en) * | 1986-01-13 | 1986-02-19 | Kirby W A | Telephone intercom device |
FR2600849B1 (fr) * | 1986-06-25 | 1994-05-20 | Apitel Sarl | Dispositif de selection de terminaux sur une ligne telephonique |
-
1988
- 1988-07-26 IT IT8821495A patent/IT1226312B/it active
-
1989
- 1989-06-08 AT AT89201470T patent/ATE116085T1/de active
- 1989-06-08 DE DE68920085T patent/DE68920085D1/de not_active Expired - Lifetime
- 1989-06-08 EP EP89201470A patent/EP0352827B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE68920085D1 (de) | 1995-02-02 |
IT1226312B (it) | 1990-12-27 |
EP0352827A2 (en) | 1990-01-31 |
EP0352827A3 (en) | 1991-08-28 |
ATE116085T1 (de) | 1995-01-15 |
EP0352827B1 (en) | 1994-12-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970710 |