CA522215A - Systemes d'intercommunication par telephone - Google Patents

Systemes d'intercommunication par telephone

Info

Publication number
CA522215A
CA522215A CA522215A CA522215DA CA522215A CA 522215 A CA522215 A CA 522215A CA 522215 A CA522215 A CA 522215A CA 522215D A CA522215D A CA 522215DA CA 522215 A CA522215 A CA 522215A
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
CA522215A
Other languages
English (en)
Inventor
E. Adler Adolf
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 CA522215A publication Critical patent/CA522215A/fr
Expired legal-status Critical Current

Links

CA522215A Systemes d'intercommunication par telephone Expired CA522215A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA522215T

Publications (1)

Publication Number Publication Date
CA522215A true CA522215A (fr) 1956-02-28

Family

ID=35675444

Family Applications (1)

Application Number Title Priority Date Filing Date
CA522215A Expired CA522215A (fr) Systemes d'intercommunication par telephone

Country Status (1)

Country Link
CA (1) CA522215A (fr)

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