CA557106A - Automatic telephone systems - Google Patents

Automatic telephone systems

Info

Publication number
CA557106A
CA557106A CA557106A CA557106DA CA557106A CA 557106 A CA557106 A CA 557106A CA 557106 A CA557106 A CA 557106A CA 557106D A CA557106D A CA 557106DA CA 557106 A CA557106 A CA 557106A
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
CA557106A
Other languages
French (fr)
Inventor
J. Warman Bloomfield
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 CA557106A publication Critical patent/CA557106A/en
Expired legal-status Critical Current

Links

CA557106A Automatic telephone systems Expired CA557106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA557106T

Publications (1)

Publication Number Publication Date
CA557106A true CA557106A (en) 1958-05-06

Family

ID=35723512

Family Applications (1)

Application Number Title Priority Date Filing Date
CA557106A Expired CA557106A (en) Automatic telephone systems

Country Status (1)

Country Link
CA (1) CA557106A (en)

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