FR924952A - Improvements to automatic telephone systems - Google Patents
Improvements to automatic telephone systemsInfo
- Publication number
- FR924952A FR924952A FR924952DA FR924952A FR 924952 A FR924952 A FR 924952A FR 924952D A FR924952D A FR 924952DA FR 924952 A FR924952 A FR 924952A
- Authority
- FR
- France
- Prior art keywords
- telephone systems
- automatic telephone
- automatic
- systems
- telephone
- 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
- H04Q3/58—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
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR924952T | 1946-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR924952A true FR924952A (en) | 1947-08-21 |
Family
ID=9439749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR924952D Expired FR924952A (en) | 1946-01-17 | 1946-01-17 | Improvements to automatic telephone systems |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR924952A (en) |
-
1946
- 1946-01-17 FR FR924952D patent/FR924952A/en not_active Expired
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