CA524054A - Automatic telephone systems - Google Patents

Automatic telephone systems

Info

Publication number
CA524054A
CA524054A CA524054A CA524054DA CA524054A CA 524054 A CA524054 A CA 524054A CA 524054 A CA524054 A CA 524054A CA 524054D A CA524054D A CA 524054DA CA 524054 A CA524054 A CA 524054A
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
CA524054A
Other languages
French (fr)
Inventor
H. Philpott William
P. Long Douglas
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 CA524054A publication Critical patent/CA524054A/en
Expired legal-status Critical Current

Links

CA524054A Automatic telephone systems Expired CA524054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA524054T

Publications (1)

Publication Number Publication Date
CA524054A true CA524054A (en) 1956-04-17

Family

ID=35677762

Family Applications (1)

Application Number Title Priority Date Filing Date
CA524054A Expired CA524054A (en) Automatic telephone systems

Country Status (1)

Country Link
CA (1) CA524054A (en)

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