CA797342A - Coin telephone antifraud circuit - Google Patents

Coin telephone antifraud circuit

Info

Publication number
CA797342A
CA797342A CA797342A CA797342DA CA797342A CA 797342 A CA797342 A CA 797342A CA 797342 A CA797342 A CA 797342A CA 797342D A CA797342D A CA 797342DA CA 797342 A CA797342 A CA 797342A
Authority
CA
Canada
Prior art keywords
antifraud
circuit
coin telephone
coin
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
CA797342A
Inventor
E. Edington John
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 CA797342A publication Critical patent/CA797342A/en
Expired legal-status Critical Current

Links

CA797342A Coin telephone antifraud circuit Expired CA797342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA797342T

Publications (1)

Publication Number Publication Date
CA797342A true CA797342A (en) 1968-10-22

Family

ID=36265339

Family Applications (1)

Application Number Title Priority Date Filing Date
CA797342A Expired CA797342A (en) Coin telephone antifraud circuit

Country Status (1)

Country Link
CA (1) CA797342A (en)

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