CA535608A - Tamper-proof recorder - Google Patents

Tamper-proof recorder

Info

Publication number
CA535608A
CA535608A CA535608A CA535608DA CA535608A CA 535608 A CA535608 A CA 535608A CA 535608 A CA535608 A CA 535608A CA 535608D A CA535608D A CA 535608DA CA 535608 A CA535608 A CA 535608A
Authority
CA
Canada
Prior art keywords
tamper
recorder
proof
proof recorder
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
CA535608A
Other languages
French (fr)
Inventor
W. Slates Ralph
A. Cool Kenneth
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.)
SERVICE RECORDER CO
Original Assignee
SERVICE RECORDER CO
Publication date
Application granted granted Critical
Publication of CA535608A publication Critical patent/CA535608A/en
Expired legal-status Critical Current

Links

CA535608A Tamper-proof recorder Expired CA535608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA535608T

Publications (1)

Publication Number Publication Date
CA535608A true CA535608A (en) 1957-01-08

Family

ID=35690236

Family Applications (1)

Application Number Title Priority Date Filing Date
CA535608A Expired CA535608A (en) Tamper-proof recorder

Country Status (1)

Country Link
CA (1) CA535608A (en)

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