CA500638A - Automatic telephone systems - Google Patents

Automatic telephone systems

Info

Publication number
CA500638A
CA500638A CA500638A CA500638DA CA500638A CA 500638 A CA500638 A CA 500638A CA 500638 A CA500638 A CA 500638A CA 500638D A CA500638D A CA 500638DA CA 500638 A CA500638 A CA 500638A
Authority
CA
Canada
Prior art keywords
telephone systems
automatic telephone
automatic
systems
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
CA500638A
Other languages
French (fr)
Inventor
Wicks John
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 Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA500638A publication Critical patent/CA500638A/en
Expired legal-status Critical Current

Links

CA500638A Automatic telephone systems Expired CA500638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA500638T

Publications (1)

Publication Number Publication Date
CA500638A true CA500638A (en) 1954-03-16

Family

ID=35646534

Family Applications (1)

Application Number Title Priority Date Filing Date
CA500638A Expired CA500638A (en) Automatic telephone systems

Country Status (1)

Country Link
CA (1) CA500638A (en)

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