CH129741A - Arrangement for the automatic establishment of connections between participants in low-frequency and high-frequency self-access systems. - Google Patents
Arrangement for the automatic establishment of connections between participants in low-frequency and high-frequency self-access systems.Info
- Publication number
- CH129741A CH129741A CH129741DA CH129741A CH 129741 A CH129741 A CH 129741A CH 129741D A CH129741D A CH 129741DA CH 129741 A CH129741 A CH 129741A
- Authority
- CH
- Switzerland
- Prior art keywords
- frequency
- participants
- connections
- arrangement
- low
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE129741X | 1926-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH129741A true CH129741A (en) | 1928-10-31 |
Family
ID=5663250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH129741D CH129741A (en) | 1926-11-08 | 1927-11-02 | Arrangement for the automatic establishment of connections between participants in low-frequency and high-frequency self-access systems. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH129741A (en) |
FR (1) | FR644613A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE854673C (en) * | 1949-11-21 | 1952-11-06 | Autophon Ag | Circuit arrangement for subscriber radio telephone stations for connection to a telephone network |
DE861862C (en) * | 1949-11-29 | 1953-01-05 | Autophon Ag | Transmit / receive station for a radio telephone system for connection via an automatic control device to a telephone exchange |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2345591B (en) * | 1995-12-08 | 2000-08-23 | Channell Ltd | Connector unit |
-
1927
- 1927-11-02 CH CH129741D patent/CH129741A/en unknown
- 1927-11-07 FR FR644613D patent/FR644613A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE854673C (en) * | 1949-11-21 | 1952-11-06 | Autophon Ag | Circuit arrangement for subscriber radio telephone stations for connection to a telephone network |
DE861862C (en) * | 1949-11-29 | 1953-01-05 | Autophon Ag | Transmit / receive station for a radio telephone system for connection via an automatic control device to a telephone exchange |
Also Published As
Publication number | Publication date |
---|---|
FR644613A (en) | 1928-10-11 |
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