CH35512A - Central office switch for telephone systems - Google Patents

Central office switch for telephone systems

Info

Publication number
CH35512A
CH35512A CH35512A CH35512DA CH35512A CH 35512 A CH35512 A CH 35512A CH 35512 A CH35512 A CH 35512A CH 35512D A CH35512D A CH 35512DA CH 35512 A CH35512 A CH 35512A
Authority
CH
Switzerland
Prior art keywords
central office
telephone systems
office switch
switch
telephone
Prior art date
Application number
CH35512A
Other languages
German (de)
Inventor
William Dunbar Francis
Original Assignee
William Dunbar Francis
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 William Dunbar Francis filed Critical William Dunbar Francis
Publication of CH35512A publication Critical patent/CH35512A/en

Links

CH35512A 1905-05-30 1905-05-30 Central office switch for telephone systems CH35512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH35512T 1905-05-30

Publications (1)

Publication Number Publication Date
CH35512A true CH35512A (en) 1906-09-15

Family

ID=4258417

Family Applications (1)

Application Number Title Priority Date Filing Date
CH35512A CH35512A (en) 1905-05-30 1905-05-30 Central office switch for telephone systems

Country Status (1)

Country Link
CH (1) CH35512A (en)

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