AT225759B - Anordnung zur tonfrequenten Tastwahl in Fernsprechanlagen - Google Patents

Anordnung zur tonfrequenten Tastwahl in Fernsprechanlagen

Info

Publication number
AT225759B
AT225759B AT215261A AT215261A AT225759B AT 225759 B AT225759 B AT 225759B AT 215261 A AT215261 A AT 215261A AT 215261 A AT215261 A AT 215261A AT 225759 B AT225759 B AT 225759B
Authority
AT
Austria
Prior art keywords
tone
arrangement
telephone systems
touch dialing
frequency touch
Prior art date
Application number
AT215261A
Other languages
English (en)
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of AT225759B publication Critical patent/AT225759B/de

Links

AT215261A 1960-07-30 1961-03-15 Anordnung zur tonfrequenten Tastwahl in Fernsprechanlagen AT225759B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE225759X 1960-07-30

Publications (1)

Publication Number Publication Date
AT225759B true AT225759B (de) 1963-02-11

Family

ID=5862585

Family Applications (1)

Application Number Title Priority Date Filing Date
AT215261A AT225759B (de) 1960-07-30 1961-03-15 Anordnung zur tonfrequenten Tastwahl in Fernsprechanlagen

Country Status (1)

Country Link
AT (1) AT225759B (de)

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