CA583967A - Systemes d'intercommunication par telephone - Google Patents

Systemes d'intercommunication par telephone

Info

Publication number
CA583967A
CA583967A CA583967A CA583967DA CA583967A CA 583967 A CA583967 A CA 583967A CA 583967 A CA583967 A CA 583967A CA 583967D A CA583967D A CA 583967DA CA 583967 A CA583967 A CA 583967A
Authority
CA
Canada
Prior art keywords
telephone systems
intercommunication telephone
intercommunication
systems
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
CA583967A
Other languages
English (en)
Inventor
Ivens Edgar
G. Wall Harry
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.)
Modern Telephones Great Britain Ltd
Original Assignee
Modern Telephones Great Britain Ltd
Publication date
Application granted granted Critical
Publication of CA583967A publication Critical patent/CA583967A/fr
Expired legal-status Critical Current

Links

CA583967A Systemes d'intercommunication par telephone Expired CA583967A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA583967T

Publications (1)

Publication Number Publication Date
CA583967A true CA583967A (fr) 1959-09-29

Family

ID=35763401

Family Applications (1)

Application Number Title Priority Date Filing Date
CA583967A Expired CA583967A (fr) Systemes d'intercommunication par telephone

Country Status (1)

Country Link
CA (1) CA583967A (fr)

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