CA535173A - Automatic telecommunication exchange systems - Google Patents

Automatic telecommunication exchange systems

Info

Publication number
CA535173A
CA535173A CA535173A CA535173DA CA535173A CA 535173 A CA535173 A CA 535173A CA 535173 A CA535173 A CA 535173A CA 535173D A CA535173D A CA 535173DA CA 535173 A CA535173 A CA 535173A
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
CA535173A
Other languages
French (fr)
Inventor
Den Hertog Martinus
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 CA535173A publication Critical patent/CA535173A/en
Expired legal-status Critical Current

Links

CA535173A Automatic telecommunication exchange systems Expired CA535173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA535173T

Publications (1)

Publication Number Publication Date
CA535173A true CA535173A (en) 1957-01-01

Family

ID=35689800

Family Applications (1)

Application Number Title Priority Date Filing Date
CA535173A Expired CA535173A (en) Automatic telecommunication exchange systems

Country Status (1)

Country Link
CA (1) CA535173A (en)

Similar Documents

Publication Publication Date Title
CA543117A (en) Automatic approach system
CA535173A (en) Automatic telecommunication exchange systems
CA537068A (en) Automatic telephone exchange systems
CA535557A (en) Telecommunication exchange systems
CA537495A (en) Telecommunication systems embodying automatic exchanges
CA539002A (en) Telecommunication systems embodying automatic exchanges
CA537790A (en) Automatic telecommunication system
CA548744A (en) Automatic telephone systems
AU215691B2 (en) Improvements relating to automatic telephone exchange systems
CA543973A (en) Automatic telephone system
AU2480057A (en) Improvements relating to automatic telephone exchange systems
CA592748A (en) Automatic telecommunication exchange system
CA532449A (en) Automatic telephone systems
CA524054A (en) Automatic telephone systems
CA587151A (en) Automatic exchange systems
CA584472A (en) Automatic exchange systems
CA512081A (en) Automatic telephone exchange systems
CA546503A (en) Two-way telecommunication systems
CA530322A (en) Automatic telephone-exchange systems
CA530323A (en) Automatic telephone-exchange systems
CA594759A (en) Automatic telephone exchange systems
AU215689B2 (en) Improvements relating to automatic telephone exchange systems andthe like
CA539003A (en) Automatic exchanges
CA543974A (en) Automatic telephone switching system
CA562062A (en) Automatic telephone exchange