CA320138A - Intercommunication device - Google Patents

Intercommunication device

Info

Publication number
CA320138A
CA320138A CA320138A CA320138DA CA320138A CA 320138 A CA320138 A CA 320138A CA 320138 A CA320138 A CA 320138A CA 320138D A CA320138D A CA 320138DA CA 320138 A CA320138 A CA 320138A
Authority
CA
Canada
Prior art keywords
intercommunication device
intercommunication
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
CA320138A
Other languages
French (fr)
Inventor
Buxton Carr Conway
William Whistlecroft Arthur
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.)
CMC Electronics Inc
Original Assignee
Canadian Marconi Co
Publication date
Application granted granted Critical
Publication of CA320138A publication Critical patent/CA320138A/en
Expired legal-status Critical Current

Links

CA320138A Intercommunication device Expired CA320138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320138T

Publications (1)

Publication Number Publication Date
CA320138A true CA320138A (en) 1932-03-01

Family

ID=35280693

Family Applications (1)

Application Number Title Priority Date Filing Date
CA320138A Expired CA320138A (en) Intercommunication device

Country Status (1)

Country Link
CA (1) CA320138A (en)

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