CA588855A - Telephone and like signalling systems - Google Patents

Telephone and like signalling systems

Info

Publication number
CA588855A
CA588855A CA588855A CA588855DA CA588855A CA 588855 A CA588855 A CA 588855A CA 588855 A CA588855 A CA 588855A CA 588855D A CA588855D A CA 588855DA CA 588855 A CA588855 A CA 588855A
Authority
CA
Canada
Prior art keywords
telephone
signalling systems
signalling
systems
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
CA588855A
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 CA588855A publication Critical patent/CA588855A/en
Expired legal-status Critical Current

Links

CA588855A Telephone and like signalling systems Expired CA588855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA588855T

Publications (1)

Publication Number Publication Date
CA588855A true CA588855A (en) 1959-12-15

Family

ID=35802396

Family Applications (1)

Application Number Title Priority Date Filing Date
CA588855A Expired CA588855A (en) Telephone and like signalling systems

Country Status (1)

Country Link
CA (1) CA588855A (en)

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