AT193950B - Automatically controlled two-way amplifier, preferably for telephone systems with loudspeaker telephones, such as executive telephone systems and the like. like - Google Patents

Automatically controlled two-way amplifier, preferably for telephone systems with loudspeaker telephones, such as executive telephone systems and the like. like

Info

Publication number
AT193950B
AT193950B AT193950DA AT193950B AT 193950 B AT193950 B AT 193950B AT 193950D A AT193950D A AT 193950DA AT 193950 B AT193950 B AT 193950B
Authority
AT
Austria
Prior art keywords
telephone systems
automatically controlled
executive
way amplifier
loudspeaker telephones
Prior art date
Application number
Other languages
German (de)
Original Assignee
Svenska Relaefabriken Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Svenska Relaefabriken Ab filed Critical Svenska Relaefabriken Ab
Application granted granted Critical
Publication of AT193950B publication Critical patent/AT193950B/en

Links

AT193950D 1954-02-24 1955-02-24 Automatically controlled two-way amplifier, preferably for telephone systems with loudspeaker telephones, such as executive telephone systems and the like. like AT193950B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE193950X 1954-02-24

Publications (1)

Publication Number Publication Date
AT193950B true AT193950B (en) 1957-12-10

Family

ID=20304706

Family Applications (1)

Application Number Title Priority Date Filing Date
AT193950D AT193950B (en) 1954-02-24 1955-02-24 Automatically controlled two-way amplifier, preferably for telephone systems with loudspeaker telephones, such as executive telephone systems and the like. like

Country Status (1)

Country Link
AT (1) AT193950B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168494B (en) * 1958-12-29 1964-04-23 Western Electric Co Voice-controlled intercom or intercom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168494B (en) * 1958-12-29 1964-04-23 Western Electric Co Voice-controlled intercom or intercom

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