CA325841A - Systeme telephonique semi-automatique - Google Patents

Systeme telephonique semi-automatique

Info

Publication number
CA325841A
CA325841A CA325841A CA325841DA CA325841A CA 325841 A CA325841 A CA 325841A CA 325841 A CA325841 A CA 325841A CA 325841D A CA325841D A CA 325841DA CA 325841 A CA325841 A CA 325841A
Authority
CA
Canada
Prior art keywords
semi
telephone system
automatic telephone
automatic
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
CA325841A
Other languages
English (en)
Inventor
Samuel Skillman Thomas
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA325841A publication Critical patent/CA325841A/fr
Expired legal-status Critical Current

Links

CA325841A Systeme telephonique semi-automatique Expired CA325841A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA325841T

Publications (1)

Publication Number Publication Date
CA325841A true CA325841A (fr) 1932-09-06

Family

ID=35288211

Family Applications (1)

Application Number Title Priority Date Filing Date
CA325841A Expired CA325841A (fr) Systeme telephonique semi-automatique

Country Status (1)

Country Link
CA (1) CA325841A (fr)

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