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Rademaker, C.A.: ¬The classification of plants in the United States Patent Classification System (2000)
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- Source
- World patent information. 22(2000), S.301-307
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Rademaker, C.A.: ¬The classification of ornamental designs in the United States Patent Classification System (2000)
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- Source
- World patent information. 22(2000), S.123-133
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Rademaker, C.A.: ¬The classification of ornamental designs in the United States Patent Classification System (2000)
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