NL142556B - Telefoonschakelstelsel met pbx-centrales. - Google Patents
Telefoonschakelstelsel met pbx-centrales.Info
- Publication number
- NL142556B NL142556B NL63300641A NL300641A NL142556B NL 142556 B NL142556 B NL 142556B NL 63300641 A NL63300641 A NL 63300641A NL 300641 A NL300641 A NL 300641A NL 142556 B NL142556 B NL 142556B
- Authority
- NL
- Netherlands
- Prior art keywords
- centrals
- pbx
- switching system
- telephone switching
- telephone
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US240558A US3264415A (en) | 1962-11-28 | 1962-11-28 | Switching system for outpulsing on pbx trunks |
Publications (1)
Publication Number | Publication Date |
---|---|
NL142556B true NL142556B (nl) | 1974-06-17 |
Family
ID=22907033
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL300641D NL300641A (sv) | 1962-11-28 | ||
NL63300641A NL142556B (nl) | 1962-11-28 | 1963-11-18 | Telefoonschakelstelsel met pbx-centrales. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL300641D NL300641A (sv) | 1962-11-28 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3264415A (sv) |
BE (1) | BE640537A (sv) |
DE (1) | DE1200376C2 (sv) |
GB (1) | GB1066589A (sv) |
NL (2) | NL142556B (sv) |
SE (1) | SE342961B (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE312154B (sv) * | 1964-07-02 | 1969-07-07 | Ericsson Telefon Ab L M | |
US3524025A (en) * | 1966-04-14 | 1970-08-11 | Nippon Telegraph & Telephone | Route advance control system for automatic telephone exchanges |
DE1537762B2 (de) * | 1966-09-17 | 1971-02-18 | Hitachi Ltd , Tokio | Steuereinrichtung fuer automatische fernmelde vermittlungs anlagen |
JPS52127108A (en) * | 1976-04-19 | 1977-10-25 | Hitachi Ltd | Controllig for private branch exchange of two combined sets |
US4415773A (en) * | 1981-10-29 | 1983-11-15 | Western Electric Company, Inc. | Methods of establishing a switching connection within a switching system |
US4879743A (en) * | 1988-10-03 | 1989-11-07 | American Telephone And Telegraph Company | PBX and adjunct using multi-frequency tones for communication therebetween |
-
0
- BE BE640537D patent/BE640537A/xx unknown
- NL NL300641D patent/NL300641A/xx unknown
-
1962
- 1962-11-28 US US240558A patent/US3264415A/en not_active Expired - Lifetime
-
1963
- 1963-11-07 GB GB43947/63A patent/GB1066589A/en not_active Expired
- 1963-11-13 DE DE1963W0035618 patent/DE1200376C2/de not_active Expired
- 1963-11-18 NL NL63300641A patent/NL142556B/xx not_active IP Right Cessation
- 1963-11-27 SE SE13119/63A patent/SE342961B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB1066589A (en) | 1967-04-26 |
DE1200376B (de) | 1965-09-09 |
NL300641A (sv) | |
US3264415A (en) | 1966-08-02 |
BE640537A (sv) | |
SE342961B (sv) | 1972-02-21 |
DE1200376C2 (de) | 1976-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NL80 | Information provided on patent owner name for an already discontinued patent |
Owner name: WESTERN ELECTRI |
|
V4 | Discontinued because of reaching the maximum lifetime of a patent |