CA227935A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA227935A
CA227935A CA227935A CA227935DA CA227935A CA 227935 A CA227935 A CA 227935A CA 227935 A CA227935 A CA 227935A CA 227935D A CA227935D A CA 227935DA CA 227935 A CA227935 A CA 227935A
Authority
CA
Canada
Prior art keywords
telephone system
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
CA227935A
Other languages
English (en)
Inventor
Cormack Crowe Douglas
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA227935A publication Critical patent/CA227935A/fr
Expired legal-status Critical Current

Links

CA227935A Systeme telephonique Expired CA227935A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA227935T

Publications (1)

Publication Number Publication Date
CA227935A true CA227935A (fr) 1923-01-16

Family

ID=35123538

Family Applications (1)

Application Number Title Priority Date Filing Date
CA227935A Expired CA227935A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA227935A (fr)

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