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SOUND SYSTEM FOR MODEL RAILROAD
US 3,466,797 A
Filed
: 06/23/1967
Issued
: 09/16/1969
Est. Priority Date
: 06/23/1967
Status: Expired due to Term
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Current Assignee
Hellsund Borje Per Uno
Original Assignee
Hellsund Borje Per Uno
Inventors
HELLSUND BORJE PER UNO
Application Number
US04/648,413
Time in Patent Office
816 Days
Field of Search
US Class Current
446/410
CPC Class Codes
A63H 19/14
Arrangements for imitating ...
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