CA320905A - Systeme telephonique semi-automatique - Google Patents

Systeme telephonique semi-automatique

Info

Publication number
CA320905A
CA320905A CA320905A CA320905DA CA320905A CA 320905 A CA320905 A CA 320905A CA 320905 A CA320905 A CA 320905A CA 320905D A CA320905D A CA 320905DA CA 320905 A CA320905 A CA 320905A
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
CA320905A
Other languages
English (en)
Inventor
Polinkowsky Lipa
C. From Owen
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 CA320905A publication Critical patent/CA320905A/fr
Expired legal-status Critical Current

Links

CA320905A Systeme telephonique semi-automatique Expired CA320905A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320905T

Publications (1)

Publication Number Publication Date
CA320905A true CA320905A (fr) 1932-03-22

Family

ID=35281459

Family Applications (1)

Application Number Title Priority Date Filing Date
CA320905A Expired CA320905A (fr) Systeme telephonique semi-automatique

Country Status (1)

Country Link
CA (1) CA320905A (fr)

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