AT143566B - Circuit arrangement for self-connecting private branch exchanges. - Google Patents
Circuit arrangement for self-connecting private branch exchanges.Info
- Publication number
- AT143566B AT143566B AT143566DA AT143566B AT 143566 B AT143566 B AT 143566B AT 143566D A AT143566D A AT 143566DA AT 143566 B AT143566 B AT 143566B
- Authority
- AT
- Austria
- Prior art keywords
- self
- circuit arrangement
- private branch
- branch exchanges
- connecting private
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE143566X | 1932-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT143566B true AT143566B (en) | 1935-11-25 |
Family
ID=20298956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT143566D AT143566B (en) | 1932-09-09 | 1933-09-02 | Circuit arrangement for self-connecting private branch exchanges. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT143566B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE765916C (en) * | 1938-12-06 | 1953-12-07 | Siemens & Halske A G | Circuit arrangement for telephone systems for initiating and canceling inquiry switchings |
-
1933
- 1933-09-02 AT AT143566D patent/AT143566B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE765916C (en) * | 1938-12-06 | 1953-12-07 | Siemens & Halske A G | Circuit arrangement for telephone systems for initiating and canceling inquiry switchings |
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