CA573155A - Signalling arrangements for telephone systems - Google Patents

Signalling arrangements for telephone systems

Info

Publication number
CA573155A
CA573155A CA573155A CA573155DA CA573155A CA 573155 A CA573155 A CA 573155A CA 573155 A CA573155 A CA 573155A CA 573155D A CA573155D A CA 573155DA CA 573155 A CA573155 A CA 573155A
Authority
CA
Canada
Prior art keywords
telephone systems
signalling arrangements
signalling
arrangements
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
CA573155A
Other languages
French (fr)
Inventor
S. Skillman Thomas
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.)
T S SKILLMAN AND Co Pty Ltd
Original Assignee
T S SKILLMAN AND Co Pty Ltd
Publication date
Application granted granted Critical
Publication of CA573155A publication Critical patent/CA573155A/en
Expired legal-status Critical Current

Links

CA573155A Signalling arrangements for telephone systems Expired CA573155A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA573155T

Publications (1)

Publication Number Publication Date
CA573155A true CA573155A (en) 1959-03-31

Family

ID=35748998

Family Applications (1)

Application Number Title Priority Date Filing Date
CA573155A Expired CA573155A (en) Signalling arrangements for telephone systems

Country Status (1)

Country Link
CA (1) CA573155A (en)

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