CA496328A - Automatic telecommunication exchange systems - Google Patents

Automatic telecommunication exchange systems

Info

Publication number
CA496328A
CA496328A CA496328A CA496328DA CA496328A CA 496328 A CA496328 A CA 496328A CA 496328 A CA496328 A CA 496328A CA 496328D A CA496328D A CA 496328DA CA 496328 A CA496328 A CA 496328A
Authority
CA
Canada
Prior art keywords
exchange systems
telecommunication exchange
automatic telecommunication
automatic
systems
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
CA496328A
Other languages
French (fr)
Inventor
S. Ridler Desmond
R. Brown Leslie
H. Bray Frederick
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Publication date
Application granted granted Critical
Publication of CA496328A publication Critical patent/CA496328A/en
Expired legal-status Critical Current

Links

CA496328A Automatic telecommunication exchange systems Expired CA496328A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA496328T

Publications (1)

Publication Number Publication Date
CA496328A true CA496328A (en) 1953-09-22

Family

ID=35641750

Family Applications (1)

Application Number Title Priority Date Filing Date
CA496328A Expired CA496328A (en) Automatic telecommunication exchange systems

Country Status (1)

Country Link
CA (1) CA496328A (en)

Similar Documents

Publication Publication Date Title
CA496328A (en) Automatic telecommunication exchange systems
CA496610A (en) Automatic telephone systems
CA497640A (en) Automatic telephone systems
CA494877A (en) Automatic telephone systems
CA490689A (en) Automatic telephone systems
CA493919A (en) Automatic telephone systems
IE22226L (en) Automatic telephone exchange systems
CA498639A (en) Long distance telephone exchange systems
CA497327A (en) Telecommunication systems
CA495231A (en) Automatic telephone system
CA512081A (en) Automatic telephone exchange systems
CA515244A (en) Telecommunication exchange systems
IE22416L (en) Automatic exchange systems
CA512082A (en) Automatic telephone exchange system
AU167217B2 (en) Telecommunication exchange system using multiplex systems
CA493418A (en) Automatic toll-ticketing system
AU160560B2 (en) Improvements relating to automatic telephone systems
AU164824B2 (en) Improvements relating to automatic telephone systems
AU165784B2 (en) Automatic approach system
CA497936A (en) Communications systems
CA496858A (en) Telephone systems
CA496514A (en) Telephone systems
CA498859A (en) Telephone systems
CA497642A (en) Telephone systems
CA498762A (en) Telephone systems