CA512301A - Intercommunication telephone systems - Google Patents

Intercommunication telephone systems

Info

Publication number
CA512301A
CA512301A CA512301A CA512301DA CA512301A CA 512301 A CA512301 A CA 512301A CA 512301 A CA512301 A CA 512301A CA 512301D A CA512301D A CA 512301DA CA 512301 A CA512301 A CA 512301A
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
CA512301A
Other languages
French (fr)
Inventor
V. Marks Leonard
W. Briscombe David
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 CA512301A publication Critical patent/CA512301A/en
Expired legal-status Critical Current

Links

CA512301A Intercommunication telephone systems Expired CA512301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA512301T

Publications (1)

Publication Number Publication Date
CA512301A true CA512301A (en) 1955-04-26

Family

ID=35663377

Family Applications (1)

Application Number Title Priority Date Filing Date
CA512301A Expired CA512301A (en) Intercommunication telephone systems

Country Status (1)

Country Link
CA (1) CA512301A (en)

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