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System for determining the listening habits of wave signal receiver users
US 3,070,798 A
Filed
: 06/09/1958
Issued
: 12/25/1962
Est. Priority Date
: 06/09/1958
Status: Expired due to Term
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Current Assignee
Charles H. Currey
,
Darrel W. Holbrook
,
Gordon K. Truesdale
,
Lewis Brown Arthur Charles
,
Robert L Freeman
Original Assignee
Charles H. Currey
,
Darrel W. Holbrook
,
Gordon K. Truesdale
,
Lewis Brown Arthur Charles
,
Robert L Freeman
Inventors
Currey, Charles H.
,
LEWIS BROWN ARTHUR CHARLES
,
Holbrook, Darrel W.
,
Truesdale, Gordon K.
,
Freeman, Robert L.
Application Number
US03/740,639
Time in Patent Office
1,660 Days
Field of Search
US Class Current
346/37
CPC Class Codes
H04H 20/12
Arrangements for observatio...
H04H 60/32
Arrangements for monitoring...
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