CA754244A - Electronic switching telephone system - Google Patents

Electronic switching telephone system

Info

Publication number
CA754244A
CA754244A CA754244A CA754244DA CA754244A CA 754244 A CA754244 A CA 754244A CA 754244 A CA754244 A CA 754244A CA 754244D A CA754244D A CA 754244DA CA 754244 A CA754244 A CA 754244A
Authority
CA
Canada
Prior art keywords
telephone system
electronic switching
switching telephone
electronic
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
CA754244A
Inventor
E. Porter Virgle
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.)
Standard Telephone and Cables Manufacturing Canada Ltd
Original Assignee
Standard Telephone and Cables Manufacturing Canada Ltd
Publication date
Application granted granted Critical
Publication of CA754244A publication Critical patent/CA754244A/en
Expired legal-status Critical Current

Links

CA754244A Electronic switching telephone system Expired CA754244A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA754244T

Publications (1)

Publication Number Publication Date
CA754244A true CA754244A (en) 1967-03-07

Family

ID=36188588

Family Applications (1)

Application Number Title Priority Date Filing Date
CA754244A Expired CA754244A (en) Electronic switching telephone system

Country Status (1)

Country Link
CA (1) CA754244A (en)

Similar Documents

Publication Publication Date Title
CA754244A (en) Electronic switching telephone system
AU413623B2 (en) Electronic switching telephone system
CA752000A (en) Electronic switching telephone system
CA752498A (en) Electronic switching telephone system
CA754677A (en) Electronic switching telephone system
CA869173A (en) Telephone switching system
AU1981367A (en) Electronic switching telephone system
AU409042B2 (en) Electronic switching system
CA752499A (en) Telephone switching system
CA759131A (en) Telephone switching system
CA752496A (en) Telephone line circuit
CA774181A (en) Telephone line circuit
CA750998A (en) Electronic switching network
AU1715467A (en) Electronic switching system
AU436256B2 (en) Telephone switching
CA770692A (en) Telephone system substation circuits
CA796834A (en) Electronic switching telephone system
CA765480A (en) Telephone signaling circuit
CA763518A (en) Line circuit for key telephone system
CA762037A (en) Telephone dialing systems
CA678432A (en) Electronic switching telephone system
CA685666A (en) Electronic telephone switching system
CA766410A (en) Electronic solid state switching means
AU413177B2 (en) Subscriber telephone circuit
CA753700A (en) Dial telephone systems