CA1173575A - Systeme de communication - Google Patents

Systeme de communication

Info

Publication number
CA1173575A
CA1173575A CA000380793A CA380793A CA1173575A CA 1173575 A CA1173575 A CA 1173575A CA 000380793 A CA000380793 A CA 000380793A CA 380793 A CA380793 A CA 380793A CA 1173575 A CA1173575 A CA 1173575A
Authority
CA
Canada
Prior art keywords
premises
telephone
exchange
computer
telephone line
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
CA000380793A
Other languages
English (en)
Inventor
Denis J. Morgan
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA000380793A priority Critical patent/CA1173575A/fr
Application granted granted Critical
Publication of CA1173575A publication Critical patent/CA1173575A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)
CA000380793A 1981-06-29 1981-06-29 Systeme de communication Expired CA1173575A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000380793A CA1173575A (fr) 1981-06-29 1981-06-29 Systeme de communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000380793A CA1173575A (fr) 1981-06-29 1981-06-29 Systeme de communication

Publications (1)

Publication Number Publication Date
CA1173575A true CA1173575A (fr) 1984-08-28

Family

ID=4120333

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000380793A Expired CA1173575A (fr) 1981-06-29 1981-06-29 Systeme de communication

Country Status (1)

Country Link
CA (1) CA1173575A (fr)

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Legal Events

Date Code Title Description
MKEX Expiry