AT116647B - Circuit arrangement for private branch exchanges. - Google Patents
Circuit arrangement for private branch exchanges.Info
- Publication number
- AT116647B AT116647B AT116647DA AT116647B AT 116647 B AT116647 B AT 116647B AT 116647D A AT116647D A AT 116647DA AT 116647 B AT116647 B AT 116647B
- Authority
- AT
- Austria
- Prior art keywords
- circuit arrangement
- private branch
- arrangement according
- branch exchanges
- loop
- Prior art date
Links
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Description
<Desc/Clms Page number 1>
Schaltungsanordnung für Nebenstellenzentralen.
EMI1.1
<Desc/Clms Page number 2>
EMI2.1
<Desc / Clms Page number 1>
Circuit arrangement for private branch exchanges.
EMI1.1
<Desc / Clms Page number 2>
EMI2.1
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT116647T | 1928-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT116647B true AT116647B (en) | 1930-03-10 |
Family
ID=3629999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT116647D AT116647B (en) | 1928-08-02 | 1928-08-02 | Circuit arrangement for private branch exchanges. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT116647B (en) |
-
1928
- 1928-08-02 AT AT116647D patent/AT116647B/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT116647B (en) | Circuit arrangement for private branch exchanges. | |
AT145762B (en) | Circuit arrangement for dialing calls to carrier current connections. | |
AT98125B (en) | Storage for the bearer of the number switch at self-connecting telephone stations. | |
AT126044B (en) | Telephone PBX. | |
AT119268B (en) | Circuit arrangement for telephone sub-centers. | |
AT243182B (en) | Receiving container | |
AT119794B (en) | Steel skeleton for buildings. | |
AT136078B (en) | Pantograph. | |
AT138701B (en) | Switch. | |
AT113584B (en) | Automatic telephone system. | |
AT242758B (en) | Circuit for displaying dialing processes | |
AT73211B (en) | Circuit arrangement for telephone exchanges with automatic selector switches. | |
AT70231B (en) | Circuit arrangement for telephone systems with company management participants. | |
AT105980B (en) | Circuit for feeding two or more metal vapor rectifier groups working in parallel. | |
AT153945B (en) | Process for obtaining preparations containing the circulatory hormone kallikrein. | |
AT106459B (en) | Asynchronous machine with capacitors. | |
AT152871B (en) | Jack. | |
AT76920B (en) | Circuit arrangement for self-connecting telephone systems. | |
AT115272B (en) | Milking machine. | |
AT151385B (en) | Gas mask allowing conversations. | |
AT97851B (en) | Device for improving the efficiency of frequency-multiplier transformers. | |
AT115389B (en) | Anchoring plate for fastening teeth. | |
AT135606B (en) | Transformer-motor unit that can be submerged under water, especially for driving submersible pumps. | |
AT118173B (en) | Power converter. | |
AT134279B (en) | Process for the preparation of 1- [3'-oxyphenyl] -2-aminopropanol- (1). |