BE539028A - - Google Patents
Info
- Publication number
- BE539028A BE539028A BE539028DA BE539028A BE 539028 A BE539028 A BE 539028A BE 539028D A BE539028D A BE 539028DA BE 539028 A BE539028 A BE 539028A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US451361A US2883472A (en) | 1954-08-23 | 1954-08-23 | Multiphone for use in telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE539028A true BE539028A (xx) |
Family
ID=23791886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE539028D BE539028A (xx) | 1954-08-23 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2883472A (xx) |
| BE (1) | BE539028A (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055985A (en) * | 1958-12-29 | 1962-09-25 | Automatic Elect Lab | Residential or farm intercom telephone system |
| US3066192A (en) * | 1960-05-09 | 1962-11-27 | Gen Dynamics Corp | Time division multiplex telephone switching system having single and multiple party pre-address and priority check circuitry |
| US3115551A (en) * | 1960-08-30 | 1963-12-24 | American Telephone & Telegraph | Crossbar switch station concentrator |
| US3271524A (en) * | 1961-09-27 | 1966-09-06 | Bell Telephone Labor Inc | Key type common control telephone switching system |
| DE1174846B (de) * | 1963-04-23 | 1964-07-30 | Standard Elektrik Lorenz Ag | Verfahren zur Speicherung und Aussendung von vollstaendigen Rufnummern in Abhaengigkeit von einer gewaehlten Kennzahl in Fernsprech-, insbesondere Fernsprechnebenstellenanlagen mit Tastwahl und Schaltungsanordnung zur Durchfuehrung des Verfahrens |
| US3325602A (en) * | 1964-03-25 | 1967-06-13 | Bell Telephone Labor Inc | Multiple station access repertory dialing system |
| US3809824A (en) * | 1972-03-31 | 1974-05-07 | Rauland Corp | Private automatic telephone system with dial and dialless telephones |
| US4744103A (en) * | 1985-11-27 | 1988-05-10 | Rauland-Borg Corporation | Computer controlled multi-link communication system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2278410A (en) * | 1940-10-08 | 1942-04-07 | Bell Telephone Labor Inc | Telephone system |
| US2374072A (en) * | 1943-01-12 | 1945-04-17 | Bell Telephone Labor Inc | Telephone system |
| NL68231C (xx) * | 1944-03-25 | |||
| BE467114A (xx) * | 1944-07-21 | |||
| US2534850A (en) * | 1945-04-04 | 1950-12-19 | Bell Telephone Labor Inc | Telephone system having preset transmitter |
| BE484800A (xx) * | 1947-09-12 | |||
| US2561946A (en) * | 1950-05-26 | 1951-07-24 | Pedatella Frank | Intercommunication system |
| US2700070A (en) * | 1951-01-27 | 1955-01-18 | Andrew W Vincent | Intercommunicating system |
-
0
- BE BE539028D patent/BE539028A/xx unknown
-
1954
- 1954-08-23 US US451361A patent/US2883472A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2883472A (en) | 1959-04-21 |