CA580373A - System and apparatus for recording the listening habits of wave signal receiver users - Google Patents

System and apparatus for recording the listening habits of wave signal receiver users

Info

Publication number
CA580373A
CA580373A CA580373A CA580373DA CA580373A CA 580373 A CA580373 A CA 580373A CA 580373 A CA580373 A CA 580373A CA 580373D A CA580373D A CA 580373DA CA 580373 A CA580373 A CA 580373A
Authority
CA
Canada
Prior art keywords
recording
wave signal
signal receiver
listening habits
receiver users
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
CA580373A
Other languages
French (fr)
Inventor
Krahulec Fred
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.)
TNC US Holdings Inc
Original Assignee
AC Nielsen Co
Publication date
Application granted granted Critical
Publication of CA580373A publication Critical patent/CA580373A/en
Expired legal-status Critical Current

Links

CA580373A System and apparatus for recording the listening habits of wave signal receiver users Expired CA580373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA580373T

Publications (1)

Publication Number Publication Date
CA580373A true CA580373A (en) 1959-07-28

Family

ID=35759790

Family Applications (1)

Application Number Title Priority Date Filing Date
CA580373A Expired CA580373A (en) System and apparatus for recording the listening habits of wave signal receiver users

Country Status (1)

Country Link
CA (1) CA580373A (en)

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