CA178634A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA178634A
CA178634A CA000178634A CA178634DA CA178634A CA 178634 A CA178634 A CA 178634A CA 000178634 A CA000178634 A CA 000178634A CA 178634D A CA178634D A CA 178634DA CA 178634 A CA178634 A CA 178634A
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
CA000178634A
Other languages
English (en)
Inventor
Harry E. Hershey
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Automatic Electric Co filed Critical Automatic Electric Co
Application granted granted Critical
Publication of CA178634A publication Critical patent/CA178634A/fr
Expired legal-status Critical Current

Links

CA000178634A 1914-02-20 1914-02-20 Systeme telephonique Expired CA178634A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA178634T 1914-02-20

Publications (1)

Publication Number Publication Date
CA178634A true CA178634A (fr) 1917-08-07

Family

ID=45298287

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000178634A Expired CA178634A (fr) 1914-02-20 1914-02-20 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA178634A (fr)

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