AT44977B - Circuit arrangement for automatic telephone exchanges. - Google Patents

Circuit arrangement for automatic telephone exchanges.

Info

Publication number: AT44977B
Authority: AT; Austria
Prior art keywords: circuit arrangement; automatic telephone; telephone exchanges; exchanges; automatic
Prior art date: 1908-12-11

Application number

Other languages

Original Assignee

Siemens Ag

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.)

1908-12-11

Filing date

1910-01-05

Publication date

1910-11-10

1910-01-05 Application filed by Siemens Ag filed Critical Siemens Ag

1910-11-10 Application granted granted Critical

1910-11-10 Publication of AT44977B publication Critical patent/AT44977B/en

Landscapes

Interface Circuits In Exchanges (AREA)
Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)

Description

  

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AT44977D 1908-12-11 1910-01-05 Circuit arrangement for automatic telephone exchanges. AT44977B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE44975X		1908-12-11
DE44977X		1909-02-06

Publications (1)

Publication Number	Publication Date
AT44977B true AT44977B (en)	1910-11-10

Family

ID=25749008

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT44977D AT44977B (en)	1908-12-11	1910-01-05	Circuit arrangement for automatic telephone exchanges.

Country Status (1)

Country	Link
AT (1)	AT44977B (en)

1910
- 1910-01-05 AT AT44977D patent/AT44977B/en active

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