CA537813A - Intercommunication telephone systems - Google Patents

Intercommunication telephone systems

Info

Publication number
CA537813A
CA537813A CA537813A CA537813DA CA537813A CA 537813 A CA537813 A CA 537813A CA 537813 A CA537813 A CA 537813A CA 537813D A CA537813D A CA 537813DA CA 537813 A CA537813 A CA 537813A
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
CA537813A
Other languages
French (fr)
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 CA537813A publication Critical patent/CA537813A/en
Expired legal-status Critical Current

Links

CA537813A Intercommunication telephone systems Expired CA537813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA537813T

Publications (1)

Publication Number Publication Date
CA537813A true CA537813A (en) 1957-03-05

Family

ID=35692446

Family Applications (1)

Application Number Title Priority Date Filing Date
CA537813A Expired CA537813A (en) Intercommunication telephone systems

Country Status (1)

Country Link
CA (1) CA537813A (en)

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