AT53526B - Circuit for semi-automatic telephone exchanges. - Google Patents

Circuit for semi-automatic telephone exchanges.

Info

Publication number
AT53526B
AT53526B AT53526DA AT53526B AT 53526 B AT53526 B AT 53526B AT 53526D A AT53526D A AT 53526DA AT 53526 B AT53526 B AT 53526B
Authority
AT
Austria
Prior art keywords
semi
circuit
automatic telephone
telephone exchanges
exchanges
Prior art date
Application number
Other languages
German (de)
Original Assignee
Zwietusch E & Co Gmbh
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 Zwietusch E & Co Gmbh filed Critical Zwietusch E & Co Gmbh
Application granted granted Critical
Publication of AT53526B publication Critical patent/AT53526B/en

Links

AT53526D 1910-07-27 1911-04-01 Circuit for semi-automatic telephone exchanges. AT53526B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53526XA 1910-07-27 1910-07-27

Publications (1)

Publication Number Publication Date
AT53526B true AT53526B (en) 1912-05-10

Family

ID=21715430

Family Applications (1)

Application Number Title Priority Date Filing Date
AT53526D AT53526B (en) 1910-07-27 1911-04-01 Circuit for semi-automatic telephone exchanges.

Country Status (1)

Country Link
AT (1) AT53526B (en)

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