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- Patents > 2009-04-30
6,717 Patents published on 04/30/09SECTION A HUMAN NECESSITIES (998)
SECTION B PERFORMING OPERATIONS; TRANSPORTING (844)
SECTION C CHEMISTRY; METALLURGY (411)
SECTION D TEXTILES; PAPER (31)
SECTION E FIXED CONSTRUCTIONS (131)
SECTION F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING (454)
SECTION G PHYSICS (2,159)
SECTION H ELECTRICITY (1,689)