FR54610E - Telephone system - Google Patents
Telephone systemInfo
- Publication number
- FR54610E FR54610E FR54610DA FR54610E FR 54610 E FR54610 E FR 54610E FR 54610D A FR54610D A FR 54610DA FR 54610 E FR54610 E FR 54610E
- Authority
- FR
- France
- Prior art keywords
- telephone system
- 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
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 |
---|---|---|---|
FR54610T | 1942-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR54610E true FR54610E (en) | 1950-07-07 |
Family
ID=8689052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR54610D Expired FR54610E (en) | 1942-11-27 | 1942-11-27 | Telephone system |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR54610E (en) |
-
1942
- 1942-11-27 FR FR54610D patent/FR54610E/en not_active Expired
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