CA160852A - Systeme de signaux telephoniques - Google Patents

Systeme de signaux telephoniques

Info

Publication number
CA160852A
CA160852A CA000160852A CA160852DA CA160852A CA 160852 A CA160852 A CA 160852A CA 000160852 A CA000160852 A CA 000160852A CA 160852D A CA160852D A CA 160852DA CA 160852 A CA160852 A CA 160852A
Authority
CA
Canada
Prior art keywords
signalling system
telephone signalling
telephone
signalling
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
CA000160852A
Other languages
English (en)
Inventor
Richard Fuller Spamer
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.)
Nortel Networks Ltd
Northern Electric and Manufacturing Co Ltd
Original Assignee
Nortel Networks Ltd
Northern Electric and Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nortel Networks Ltd, Northern Electric and Manufacturing Co Ltd filed Critical Nortel Networks Ltd
Application granted granted Critical
Publication of CA160852A publication Critical patent/CA160852A/fr
Expired legal-status Critical Current

Links

CA000160852A 1911-06-17 1911-06-17 Systeme de signaux telephoniques Expired CA160852A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA160852T 1911-06-17

Publications (1)

Publication Number Publication Date
CA160852A true CA160852A (fr) 1915-02-23

Family

ID=45280547

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000160852A Expired CA160852A (fr) 1911-06-17 1911-06-17 Systeme de signaux telephoniques

Country Status (1)

Country Link
CA (1) CA160852A (fr)

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