CA633556A - Telephone conference circuit - Google Patents

Telephone conference circuit

Info

Publication number
CA633556A
CA633556A CA633556A CA633556DA CA633556A CA 633556 A CA633556 A CA 633556A CA 633556 A CA633556 A CA 633556A CA 633556D A CA633556D A CA 633556DA CA 633556 A CA633556 A CA 633556A
Authority
CA
Canada
Prior art keywords
telephone conference
conference circuit
circuit
telephone
conference
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
CA633556A
Inventor
H. Abbott Henry
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA633556A publication Critical patent/CA633556A/en
Expired legal-status Critical Current

Links

CA633556A Telephone conference circuit Expired CA633556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA633556T

Publications (1)

Publication Number Publication Date
CA633556A true CA633556A (en) 1961-12-26

Family

ID=35889715

Family Applications (1)

Application Number Title Priority Date Filing Date
CA633556A Expired CA633556A (en) Telephone conference circuit

Country Status (1)

Country Link
CA (1) CA633556A (en)

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