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- Patents > 2009-04-16
5,836 Patents published on 04/16/09SECTION A HUMAN NECESSITIES (1,053)
SECTION B PERFORMING OPERATIONS; TRANSPORTING (756)
SECTION C CHEMISTRY; METALLURGY (421)
SECTION D TEXTILES; PAPER (28)
SECTION E FIXED CONSTRUCTIONS (124)
SECTION F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING (389)
SECTION G PHYSICS (1,652)
SECTION H ELECTRICITY (1,413)