CA567448A - Automatic telephone systems - Google Patents

Automatic telephone systems

Info

Publication number
CA567448A
CA567448A CA567448A CA567448DA CA567448A CA 567448 A CA567448 A CA 567448A CA 567448 A CA567448 A CA 567448A CA 567448D A CA567448D A CA 567448DA CA 567448 A CA567448 A CA 567448A
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
CA567448A
Other languages
French (fr)
Inventor
W. Baldock David
Barrow Norman
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Publication date
Application granted granted Critical
Publication of CA567448A publication Critical patent/CA567448A/en
Expired legal-status Critical Current

Links

CA567448A Automatic telephone systems Expired CA567448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA567448T

Publications (1)

Publication Number Publication Date
CA567448A true CA567448A (en) 1958-12-16

Family

ID=35739968

Family Applications (1)

Application Number Title Priority Date Filing Date
CA567448A Expired CA567448A (en) Automatic telephone systems

Country Status (1)

Country Link
CA (1) CA567448A (en)

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