CA521518A - Automatic telephone system - Google Patents

Automatic telephone system

Info

Publication number
CA521518A
CA521518A CA521518A CA521518DA CA521518A CA 521518 A CA521518 A CA 521518A CA 521518 A CA521518 A CA 521518A CA 521518D A CA521518D A CA 521518DA CA 521518 A CA521518 A CA 521518A
Authority
CA
Canada
Prior art keywords
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
CA521518A
Other languages
French (fr)
Inventor
Kessler Frank
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.)
General Dynamics Corp
Original Assignee
General Dynamics Corp
Publication date
Application granted granted Critical
Publication of CA521518A publication Critical patent/CA521518A/en
Expired legal-status Critical Current

Links

CA521518A Automatic telephone system Expired CA521518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA521518T

Publications (1)

Publication Number Publication Date
CA521518A true CA521518A (en) 1956-02-07

Family

ID=35674739

Family Applications (1)

Application Number Title Priority Date Filing Date
CA521518A Expired CA521518A (en) Automatic telephone system

Country Status (1)

Country Link
CA (1) CA521518A (en)

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