JPS5227486B1 - - Google Patents
Info
- Publication number
- JPS5227486B1 JPS5227486B1 JP40053409A JP5340965A JPS5227486B1 JP S5227486 B1 JPS5227486 B1 JP S5227486B1 JP 40053409 A JP40053409 A JP 40053409A JP 5340965 A JP5340965 A JP 5340965A JP S5227486 B1 JPS5227486 B1 JP S5227486B1
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US393911A US3342934A (en) | 1964-09-02 | 1964-09-02 | Private branch exchange telephone system with dial transfer facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5227486B1 true JPS5227486B1 (ja) | 1977-07-20 |
Family
ID=23556756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40053409A Pending JPS5227486B1 (ja) | 1964-09-02 | 1965-09-02 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3342934A (ja) |
| JP (1) | JPS5227486B1 (ja) |
| BE (1) | BE668914A (ja) |
| DE (1) | DE1293868B (ja) |
| GB (1) | GB1115307A (ja) |
| NL (1) | NL145743B (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3484561A (en) * | 1966-07-11 | 1969-12-16 | Automatic Elect Lab | Apartment telephone-intercom and door release system |
| US3557318A (en) * | 1966-09-29 | 1971-01-19 | American Telephone & Telegraph | Apartment house telephone system |
| GB1218344A (en) * | 1967-01-12 | 1971-01-06 | Gen Electric Co Ltd | Improvements in or relating to private telephone exchanges |
| IT1101398B (it) * | 1977-12-29 | 1985-09-28 | Siemens Ag | Dispositivo per svolgere operazioni di commutazione in impianti telefonici,specie in impianti telefonici derivati,con un dispositivo di comando centrale e con ulteriori dispositivi centrali,decentrati e periferici per formare collegamenti interni con terzi apparecchi di utente |
-
1964
- 1964-09-02 US US393911A patent/US3342934A/en not_active Expired - Lifetime
-
1965
- 1965-08-26 NL NL656511151A patent/NL145743B/xx unknown
- 1965-08-27 BE BE668914D patent/BE668914A/xx unknown
- 1965-08-31 DE DEW39837A patent/DE1293868B/de not_active Withdrawn
- 1965-09-02 GB GB37472/65A patent/GB1115307A/en not_active Expired
- 1965-09-02 JP JP40053409A patent/JPS5227486B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1293868B (de) | 1969-04-30 |
| GB1115307A (en) | 1968-05-29 |
| NL145743B (nl) | 1975-04-15 |
| NL6511151A (ja) | 1966-03-03 |
| US3342934A (en) | 1967-09-19 |
| BE668914A (ja) | 1965-12-16 |