CH280685A - Telephone network. - Google Patents
Telephone network.Info
- Publication number
- CH280685A CH280685A CH280685DA CH280685A CH 280685 A CH280685 A CH 280685A CH 280685D A CH280685D A CH 280685DA CH 280685 A CH280685 A CH 280685A
- Authority
- CH
- Switzerland
- Prior art keywords
- telephone network
- telephone
- network
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1010952T | 1947-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH280685A true CH280685A (en) | 1952-01-31 |
Family
ID=9569475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH280685D CH280685A (en) | 1947-12-11 | 1948-09-16 | Telephone network. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH280685A (en) |
FR (1) | FR1010952A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE933345C (en) * | 1954-03-11 | 1955-09-22 | Funke & Huster Elek Zitaetsges | Battery-free telephone system for line selection |
DE1029419B (en) * | 1953-12-22 | 1958-05-08 | Hagenuk Neufeldt Kuhnke Gmbh | Circuit arrangement for telephone systems with confidentiality |
-
1947
- 1947-12-11 FR FR1010952D patent/FR1010952A/en not_active Expired
-
1948
- 1948-09-16 CH CH280685D patent/CH280685A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1029419B (en) * | 1953-12-22 | 1958-05-08 | Hagenuk Neufeldt Kuhnke Gmbh | Circuit arrangement for telephone systems with confidentiality |
DE933345C (en) * | 1954-03-11 | 1955-09-22 | Funke & Huster Elek Zitaetsges | Battery-free telephone system for line selection |
Also Published As
Publication number | Publication date |
---|---|
FR1010952A (en) | 1952-06-17 |
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