CA537068A - Automatic telephone exchange systems - Google Patents

Automatic telephone exchange systems

Info

Publication number
CA537068A
CA537068A CA537068A CA537068DA CA537068A CA 537068 A CA537068 A CA 537068A CA 537068 A CA537068 A CA 537068A CA 537068D A CA537068D A CA 537068DA CA 537068 A CA537068 A CA 537068A
Authority
CA
Canada
Prior art keywords
telephone exchange
automatic telephone
exchange systems
systems
automatic
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
CA537068A
Other languages
French (fr)
Inventor
H. Flowers Thomas
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA537068A publication Critical patent/CA537068A/en
Expired legal-status Critical Current

Links

CA537068A Automatic telephone exchange systems Expired CA537068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA537068T

Publications (1)

Publication Number Publication Date
CA537068A true CA537068A (en) 1957-02-12

Family

ID=35691702

Family Applications (1)

Application Number Title Priority Date Filing Date
CA537068A Expired CA537068A (en) Automatic telephone exchange systems

Country Status (1)

Country Link
CA (1) CA537068A (en)

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