FR1497886A - Improvements to telephone systems - Google Patents
Improvements to telephone systemsInfo
- Publication number
- FR1497886A FR1497886A FR81721A FR81721A FR1497886A FR 1497886 A FR1497886 A FR 1497886A FR 81721 A FR81721 A FR 81721A FR 81721 A FR81721 A FR 81721A FR 1497886 A FR1497886 A FR 1497886A
- Authority
- FR
- France
- Prior art keywords
- telephone systems
- telephone
- systems
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1965ST024580 DE1256269B (en) | 1965-10-30 | 1965-10-30 | Circuit arrangement for telephone exchanges working according to the Leitaderverfahren |
FR81721A FR1497886A (en) | 1966-10-27 | 1966-10-27 | Improvements to telephone systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR81721A FR1497886A (en) | 1966-10-27 | 1966-10-27 | Improvements to telephone systems |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1497886A true FR1497886A (en) | 1967-10-13 |
Family
ID=8620011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR81721A Expired FR1497886A (en) | 1965-10-30 | 1966-10-27 | Improvements to telephone systems |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1497886A (en) |
-
1966
- 1966-10-27 FR FR81721A patent/FR1497886A/en not_active Expired
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