CA543974A - Automatic telephone switching system - Google Patents

Automatic telephone switching system

Info

Publication number
CA543974A
CA543974A CA543974DA CA543974A CA 543974 A CA543974 A CA 543974A CA 543974D A CA543974D A CA 543974DA CA 543974 A CA543974 A CA 543974A
Authority
CA
Canada
Prior art keywords
switching system
telephone switching
automatic telephone
automatic
telephone
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
P. Boswau Hans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEICH ELECTRIC Co
Original Assignee
LEICH ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA543974A publication Critical patent/CA543974A/en
Expired legal-status Critical Current

Links

CA543974D Automatic telephone switching system Expired CA543974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA543974T

Publications (1)

Publication Number Publication Date
CA543974A true CA543974A (en) 1957-07-23

Family

ID=35701145

Family Applications (1)

Application Number Title Priority Date Filing Date
CA543974D Expired CA543974A (en) Automatic telephone switching system

Country Status (1)

Country Link
CA (1) CA543974A (en)

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