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Audio system for drive-in theater
US 2,851,537 A
Filed
: 10/17/1955
Issued
: 09/09/1958
Est. Priority Date
: 10/17/1955
Status: Expired due to Term
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Current Assignee
Hadyn L. Smith
,
Harold W. Rosenberg
,
Jasper L. Jeung
Original Assignee
Hadyn L. Smith
,
Harold W. Rosenberg
,
Jasper L. Jeung
Inventors
Rosenberg, Harold W.
,
Jeung, Jasper L.
,
Smith, Hadyn L.
Application Number
US03/540,954
Time in Patent Office
1,058 Days
Field of Search
US Class Current
381/78
CPC Class Codes
H04B 5/00
Near-field transmission sys...
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