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United States Patent Classification
United States Patent Classification
official technology classification for patent applications to USPTO 1899-2013
en-US
/juˈnaɪtəd ˈsteɪts ˈpætənt ˌklæsəfəˈkeɪʃən/
en-GB
/juːˈnaɪtɪd ˈsteɪts ˈpeɪtnt ˌklæsɪfɪˈkeɪʃən/
Categories:
patent classification