CA499898A - Search signal apparatus for determining the listening habits of wave signal receiver users - Google Patents

Search signal apparatus for determining the listening habits of wave signal receiver users

Info

Publication number
CA499898A
CA499898A CA499898A CA499898DA CA499898A CA 499898 A CA499898 A CA 499898A CA 499898 A CA499898 A CA 499898A CA 499898D A CA499898D A CA 499898DA CA 499898 A CA499898 A CA 499898A
Authority
CA
Canada
Prior art keywords
determining
listening habits
wave signal
receiver users
signal receiver
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
CA499898A
Other languages
French (fr)
Inventor
L. Freeman Robert
A. Scherbatskoy Serge
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 CA499898A publication Critical patent/CA499898A/en
Expired legal-status Critical Current

Links

CA499898A Search signal apparatus for determining the listening habits of wave signal receiver users Expired CA499898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA499898T

Publications (1)

Publication Number Publication Date
CA499898A true CA499898A (en) 1954-02-09

Family

ID=35645346

Family Applications (1)

Application Number Title Priority Date Filing Date
CA499898A Expired CA499898A (en) Search signal apparatus for determining the listening habits of wave signal receiver users

Country Status (1)

Country Link
CA (1) CA499898A (en)

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