CH258153A - Procédé et dispositif de transmission d'appels. - Google Patents
Procédé et dispositif de transmission d'appels.Info
- Publication number
- CH258153A CH258153A CH258153DA CH258153A CH 258153 A CH258153 A CH 258153A CH 258153D A CH258153D A CH 258153DA CH 258153 A CH258153 A CH 258153A
- Authority
- CH
- Switzerland
- Prior art keywords
- transmitting calls
- calls
- transmitting
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
- H04L17/02—Apparatus or circuits at the transmitting end
- H04L17/04—Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars
- H04L17/06—Contact operating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structure Of Telephone Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR997292T | 1945-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH258153A true CH258153A (fr) | 1948-11-15 |
Family
ID=9558516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH258153D CH258153A (fr) | 1945-07-05 | 1946-06-07 | Procédé et dispositif de transmission d'appels. |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE465816A (fr) |
CH (1) | CH258153A (fr) |
FR (1) | FR997292A (fr) |
GB (1) | GB665816A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE954788C (de) * | 1951-04-06 | 1956-12-20 | Autelca Ag | Fernschreibmaschine fuer automatischen Fernschreibvermittlungsbetrieb |
US4384526A (en) * | 1981-03-24 | 1983-05-24 | Cilinderscreen Holland B.V. | Cylinder screen printing machine with means for controlling the movement of the paper holding clips |
-
0
- BE BE465816D patent/BE465816A/xx unknown
-
1945
- 1945-07-05 FR FR997292D patent/FR997292A/fr not_active Expired
-
1946
- 1946-06-07 CH CH258153D patent/CH258153A/fr unknown
- 1946-07-03 GB GB19886/46A patent/GB665816A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR997292A (fr) | 1952-01-03 |
BE465816A (fr) | |
GB665816A (en) | 1952-01-30 |
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