Patent classifications
D
TEXTILES; PAPER
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D10
INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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D10B
INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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D10B2503/04
Floor or wall coverings; Carpets
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D10B2503/042
Primary backings for tufted carpets
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