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 (???)  Library
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       Book ID  : 22685
       Title    : The Classification of Patents
       Author   : United States. Patent Office
       Language : en
       Issued   : 2007-09-20
       
       Download Book (plain text)
 (TXT) 22685-0.txt
       
       Download Book (ePub)
 (BIN) 22685-0.epub
       
 (???) ubjects 
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         Patents -- United States
       
 (???) ookshelves 
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 (DIR)   Category: Engineering & Technology
 (DIR)   Category: Research Methods/Statistics/Information Sys